Small block chevy running rough 060 over holley alum heads 2. 7L LT1 Engine Problems By Jake Mayock Published on July 14, 2021 January 9, 2024 Updated on January 9, 2024 GM’s 5. I know the choke is bad ( or at least pretty sure) because it doesnt do anything. 2. We find low oil pressure. To adjust these rockers, you do not use a Chevy Forums FREE technical assistance for your restoration and repair. 73 Are you running an internal coil (hei) or external. The HEI and wires are all new too. Made over 900 HP with a dry sump and they went back to wet sump and about 860 hp or so. AP4Liberty The cooling system for the Chevrolet 350 engine consists of a water pump, a radiator and a thermostat. Rebuilt carb and tested fuel pump. com/gp/product/B000N31ZJ How to Start Building Your Chevy Small-Block Engine - Covers Engines: 262, 265, 267, 283, 302, 305, 327, 350, and 400-ci . @brake1000 gave you one way to set it, that's old school, but has been done many times and works. And I agree with the others advising you to get the timing sorted out, 0* BTDC is not correct. Though it was discontinued nearly a It's running way too rich and no matter what I do I can't seem to correct it. There is 12V from the fuse block through the ignition to the choke, so I know it General Motors/Chevrolet produced the 5. I have tried everything below but nothing seemed to work specs 1406 edelbrock carb 600cfm edelbrock intake dual plane performer cam- unknown seems to be mild old school cast heads. 6:1 roller rockers, an Edelbrock Air-Gap intake (fully ported and gasket-matched), and a Sport Truck garage tests Demon carburetors on a small block Chevy engine and proves that bigger carburetors aren't necessarily better. Dooley. 327 Chevrolet V-8: A Bigger, Badder Small-Block. We find low compression on Hey whats good . Sort by Oldest first Oldest first Newest first Most reactions. 3L, 4L60E, 12 bolt posi 3. Too bad I have to feel like that cause the car is my baby for cryin out loud. Chevy used the LT-9 and LS9s to power their trucks, and most of the engines from Hello there. Messages 852 Reaction score 0 Location Kansas Topeka. Adding a turbo kit to your 350 small block Chevy is a great way to increase its power and performance. The Read about reliability and common problems on Chevy's 4. It’s not bad, but it’s rough enough to for me to notice when sitting at a light, and with such a mild setup, it figured it should idle real smooth. Overheating at idle and running cool on the hay usually points to lack of air flow at idle. We started with Number One and worked our way around the distributor cap clockwise using a set of Summit spark plug wires. He might find the leak real quick. You should NOT see any fuel coming from the boosters at idle. They start the dyno pull at 6000 rpms and pull to about 10000. Starts and runs/idles rough until you accellerate some the it smooths out and runs like it should. 0 fix the choke before scrapping the carb. Shadetree55. Profile Page. Its an excellent street carb, and the engine is mildly cammed. So I took it to another machinist and had the rotating assembly Our smaller blowers on a stock small-block Chevy running 6-7 pounds of boost will result in an increase of approximately 100-120 hp. Need a little help. I am ready to set fire to the whole damn car. Customer: 350 chevy small block has a rough idel especially when in gear. When I drive it on the highway over 50mph the temp climbs to 210+. By following the tips in this guide, you can choose the right kit for your needs and install it properly The small-block Chevy has retained the stock 0. 3L V6 engine made from 1985 to 2014. You can also set it using a vacuum gauge, adjust the timing A small-block Chevy's distributor gets its motivation directly from the oil pump, so spark scatter can also be the result of a worn-out oil pump or distributor drive gear. Misfires and rough idling are also prevalent in 5. After setting valves, take a compression test. I assumed that the new plugs would fix the problem, but it had minimal effect. 3 Vortec engine for nearly two decades from 1999–2014. By following these tips, you can help extend the life of your turbo kit and keep your 350 small block Chevy running strong. What type do you guys have? Note: I have a vacuum pump on the car and a 2800 torque converter with a TH-350. Even a loose wire cap not pushed onto a plug or 2 can do this. In fact it is so far advanced that at The engine is running now and seems pretty good with the newer cam and the timing is set at +8 degree advanced at about 850-900 rpm is this correct and if not any ideas about what would be best for this specific situation any information is appreciated. It is critical to engine efficiency and to the service life of the valve train (camshaft, lifters, pushrods, valve springs, etc) for the lifters to have the proper amount of preload. the setup is rebuilt iron heads-1975 305 60cc castings with port work done around the valves to supposedly equal 64cc's. Try running it with the fan, alternator and/or P/S pump belt removed. What would keep the right screw from doing what it is supposed. Right now the engine Excessive lifter preload will cause the motor to idle rough or have low manifold vacuum and can lead to severe engine damage. During the winter, the waterpump began to leak so I ordered a new 30% more flow pump from summit and recently installed it. My Account. If they launched right off an idle, they would stumble, stall, and fall on their face. M. hydraulic lifters. 480 . Running temp of 350 small block chevrolet. Running a Mild Lunati cam and scorpion roller rockers on dart iron eagle heads. Make sure the gasket is round outer and a triangle inner hole. The vacuum that goes to the back of the With the engine running take a look stright down the carb. All, this video was designed to help others. motortrend. It’s a nice little cruiser and not really a hot performance engine. 5:1 compression, a Comp Cams 286H-10 single-pattern cam, 1. did a compression test all cylinders are showing 160lbs. depending on what your cam specs are and are you running vacuum advance on full manifold or time port off the metering block? With Check the engine and transmission mounts and check any exhaust or linkages that run close to the body or chassis. Engine is 350, World sportsman 2 heads, 9:1 compression or a hair more. 25 inch valve springs. Should Be Zero fuel dribbling out at idle. I was told the heads have 180cc intake runners, 64cc chambers, 65cc exhaust ports, and 2. If the engine "coughed" during the new start up it prob blew the power valve. Government's first duty is to protect the people, not run Now for my advertising: I make a special valve cover for adjusting SBC (small block Chevy) hydraulic lifters I call the “Adjust-A-Cover”. The car was running rough so I timed the ignition. So finding the exact point of zero lash is critical. I stock the tall version of an Adjust-A-Cover and it costs $35 plus shipping. 7L LT1 engine was released in 1991 and was the predecessor to the first official LS engine, the LS1 . Also, after the initial backfire and stumble, when you get to the higher RPMs, the engine runs fairly strong, and light black/gray (not rich thick black) smoke comes out of the exhaust. QUESTION. 480 int ext lift. “The thing to keep in mind is that an engine will find its own ‘comfortable’ operating temperature and throwing parts at it — like an aluminum radiator — isn’t I have seen too many cases where the idle is tuned so rich the plugs are black and on the verge of fouling. Now the car starts hard. It seems that the more i retard the timing (clockwise) even to the point of it I know this might seem like a rather simple (and stupid) question to ask, but what's the best way to time and tune a small block chevy? I'm running a 307 sbc with an edelbrock aluminum intake and edelbrock 4 barrel carb, single point The small, OE radiator from your 1967 small-block with its anemic 185 horsepower is not going to be the right radiator for your 450 horsepower LS-swapped Camaro. The engine is running an Isky Chevrolet Performance’s 350 crate engines incorporate modern technologies that elevate the classic 350 small-block engine to new levels of high-rpm performance. After examining port That is the only way. When i started the engine, it felt as if it is running only on 6 cylinders, very rough. Used it on AMC v8s, and quite a few small block Chevy 350, 383, 406, 408, and bigger engines with aftermarket heads. 3L engines. - 1- 2 5 - 7 Get #6 to Top Dead Center Exh. I plan to replace the rear end with a 3. At first, the temp. 30 gap. Chevy DIY. Things I already thought of: 1. Jump to Latest flow loss across the EFI’s temp sensor till the thermostat opens changes the cold engine fueling profile resulting in rough running that isn’t there when the bypass hose is installed and functional. Assembly lube should be put on the cam and the mating face of the lifters. Since then it has grown to be a leader among full size Chevrolet K5 Blazer and GMC I had once purchased a 350 small block Chevy rebuilt from a machinist. I have checked the fuel pump, filter, etc. When the engine is set to 6 - 8 degrees BTDC the engine idles rough at 600 - 700. on a small block chevy, when up on number one compression stroke, take the cap off and the rotor should be pointing to the number one cylinder and should also be pointing at number one on the cap, I have see MANY times where people do not have their distributor on number one and do all types of stuff to get it to run right and have backfires I have a chevy 350 that is running rich at idle and cruise. The one I got from Autozone looks just like this and was in one of those little red "HELP" packages that hangs on the wall with all the little misc. i put on a set of edelbrock performer heads with 10. 3 was running rough on cold starts and smelled really lean. I don't get a temp light, and the engine seems to run at normal temp, although I To determine if this is the problem, tee off at the carburetor inlet and run a nylon or copper fuel pressure line from the tee back to the firewall and up past the hood lip up to the cowl behind the hood lip. This is a brand new Holley Keith Dorton 300-110 intake manifold for small block Chevy. it sputters and bogs when it gets under load in gears. 15 Is this a better way to go with a street engine? I have a small-block 350 Chevy in a ’67 Chevy pickup with a TH350 trans and 3. Checkout $ 0. its an 84 truck with a quadrajet 4 barrel carb and an HEI distributor. If when your trying to start it it doesn’t turn over easily rotate the Home / Chevy / The 5 Most Common Chevy 5. When the car was sounding right I tightened the hold down nut on the distributor. 3L V6 engine (I don't think they ran the S10 with a 4-cyl and 4x4). Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. For optimal performance however, experts recommend aiming for an even higher torque rating — between 85 and 95 Small Block, 708 HP plus nitrous. The engine seems to run great; it isn't hard to start and doesn't ping. it has HEI distribution. I've seen some make a mistake of running the round inner and it would run rich. If it is reading 208 during hot days and heavy use you are probably ok. 60 valves I had a similar issue with poor transition from idle a while back involving a small block Chevy 406 with a Holley 83670 - 670 cfm Street Avenger aluminum 4-bbl carburetor with vacuum secondaries and electric choke. com Eldon Triggs - 1957 Bel Air Sport Sedan "Bertha" ATFA Charter Member #270 MAFCA #64421 AACA #919422. I have messed with the idle screws a bunch, but nothing seems to help a lot Here is my specs: SBC 355 rebuilt Cam - Crane Cam 968711 - 300hp 327ci Edelbrock 1406 carb Team In this video, I show you how to adjust the idle mixture of a Edelbrock carb and set timing on a small block. 92 eighth @ 116 with a 1. I remember it was small journal, 30-over flattops, 10. 31, LS 4 wheel disc brakes 63 Nova wagon LQ4, T56 Magnum, Moser 12 bolt 3. idle is pretty smooth, but anything above idle and it randomly spurts out a miss or backfire. 3 Vortec engine was hugely successful. At idle it has a slight miss, and under load any sort of load or while accelerating through mid range RPMs, it runs like absolute crap and will even feel like a shutter at times. 14832 posts · Dying under load or not even wanting to run with the choke on because she was running so rich, made me want to bash my head into a wall. 6969 posts · Joined 2003 Add to quote; Only show this user #18 That higher therm will help you but since your running hotter than that, that temp will be inevitable and you will hit that temp but it might take a little longer to get there with the 185 therm. We're in Pueblo, Colorado so the first thing I did was change out the jets to 68 thinking that the altitude was messing with it, but that made no difference. Post,Global West stage 3, Small Block, Small Journal 337cid. Under load at high RPMs it sprays oil out of the dipstick tube, pushing the dipstick out an if it is a vortec, it should be running at 195 at the lowest as these engines need to run a bit warmer to perform correctly. You also might want to replace the PCV In your last post you couldn't figure out how to set the dwell angle and you bought the electronic ignition. Its easy to change, just take off the front fuel bowl then the metering block. but I cannot believe that a small block Chevy would even turn over with out the starter kicking back with 35 degrees of initial timing. Timing is set at 32°, fuel pressure is right around 5 psi, spark looks very good. . Apparently its giving me 25 degrees of mechanical advance by 3000 RPM, which seems about right. It is of vital importance that the cooling system work properly, as a cooling problem can lead not only to an engine which overheats, but also to more serious problems such as a damaged head gasket or a cracked cylinder block. 08 open rear end. I've read a lot of praise from reputable names, but never laid my hands on one before. 570" lift 227/233 duration @ . I have a 72 chevy c10 with a recently rebuilt 350. I've had a few sbc noises dip stick in The car’s considerably lighter weight gave Joe’s Corvair an advantage, and that allowed him to stick with his proven 377” small-block Chevy for reliable power. It's running a Holley Brawler carb. Post back with your results. 9. If there The motor is a fresh 350 mild street motor, edelbrock carb, msd dist etcall shoved in an s-10. After running for a while and the engine warms up it runs great. Misfires and Rough Idling. Attachments. from there refer to the firing order of a small block Chevy and arrange your wires accordingly. I'll pull the plugs this weekend and do a compression check, and also check resistance on the plug wires. Model specific subject matter experts, classified ads and more. Once the lifters are set, they very rarely need an adjustment. I did a little tuning with the Edelbrock kit and think it is dialed in pretty good. I don't know what it came out of, but I put all new accessories on it, including a water pump. edelbrock performer intake and a 1406 carb. manual conversion is quick and dirty solution. Skip to navigation Skip to content. 8 MB Views: This will show if the problem is in the ignition. That’s what Kyle Kirker of NewEra Racecraft did with his 16-year-old daughter Josie, who has had her license for about a year. Having the gauge handy would help there. I have a 3 year old engine I bought from jegs , it has been running fine since day one , just recently I had it running to check an charging issue all of a sudden while the engine was at a fast idle it a dropped its idle and started to shake /run rough . U. When first started in cooler weather the engine misfires, runs rough. She My motor is a 355 small-block Chevy running 10. It makes a noise like it is not turning proper and I have to gas it to get it to start. The Sbc im running in the nash (. The motor runs pretty good at idle and cruises good as well, but as soon as you stomp on it, it sputters, backfires and misses Timing is about 38* total. (text book 300 horse Nova). It runs great between 1000 and 5000 though. gauge was going from almost They used a small block chevy header build kit with 1 3/4" primaries to finish up their project. Use a 1" wrench to take it off. Not normal rumbling etc, but a legit bang. Read more, at Sport Truck Magazine. being cold out too probably doesnt help it I just installed a new cam in my small block Chevy. Running rich? The old plugs were brown with a small 0. 60 valves, screw in studs, guideplates, 1. Fortunately, the Our small-block Chevy firing order is 1-8-4-3-6-5-7-2, so that’s the order in which we will install the plug wires. Rev the engine to about 3000 rpm and hold it steady. Unhook vacuum advance and block off the vacuum line. It idles rough and actls like it's going to stall. The Chevy small-block V-8 is an engine that has touched so many lives that, no matter where your car brand loyalty lies, chances are good that you’ve got a p Rough sounds like its for me , but according to the builder, I shouldn't drive the car daily, so I'm puzzled. Any ideas??? Both motors run fantastic with great response. In my last session at the track, it seems like the engine doesn’t pull as hard above 5,500 rpm as I think it should. The big-block pump has about 30-percent greater flow rate than the small-block pump, and it has a 12- tooth gear arrangement instead of the normal 7-tooth gear of the stock pump. I was 18 and the finished motor was going into my 66'. 842-inch tappet diameter since the very first small-block Chevy engine made noise in 1955. Hello guys well I am once again putting in a new set of spark plugs in my 350 small block chevy and am trying to figure out why I keep going through them. I also told you that if you didn't set your initial timing to between 8 and 12 it would run hot. These symptoms typically originate from issues with My 1986 Silverado C10 with a small block 305 is having a weird misfire issue. He was also winning open competition events and match races, gaining a reputation I have a 79' 350 in a GMC C2500 with similar symptoms, runs great for about 5 sec, then starts running rough and shuts down. Baxter Metal Works: 8-1 LS Swapped C10. Starts right up, has good fuel pressure (~7psi) good vacuum (14") and after tuning the carb, seems to be running well at idle and under load without issue. I checked the spark just to be on the safe side though. That set up should not overheat. 72 Nova 410 big block 3 speed Saginaw (was 306" inline six) Email Report gotta56forme Valued Contributor Posts: 3427 so those cans don't work very well on a modified engine; with less than 15" Hg. - 1 3 4 -8 Int. The best way to do this so you don’t get confused is to just follow the firing order installing each plug wire through the order. Conclusion. The only reason What would cause a non vortec carburated Chevy small block to idle well at 16 degrees BTDC but idle rough and erratic at 8 degrees? The engine will run good at that high spark advance but will obviously ping at higher RPMs. Power is sent through a 700R4 on its way to a trusty GM 10-bolt out back. When it was sounding rough and the timing I had once purchased a 350 small block Chevy rebuilt from a machinist. I removed all oildeposits on the inlet and assembled everything with new gaskets. I also installed a new thermostat, a new four-core In this Hagerty DIY, Kyle Smith walks you through the process of adjusting timing on a Chevy small-block engine. Timing and idle mixture were pretty close to ideal, manifold vacuum was I’ve got a small block chevy 350 with a misfire and rough idle. If it had been running rich for a while it's possible it has melted the catalyst. EVERYONE that has bought one will tell you that it is the cat’s nuts way to adjust SBC hydraulic lifters. you will want to move it left or right to get the timing at typically 12°with you timing light after you crank it. Car runs excellent, is very snappy, gets good gas mileage and will run in the 13's. 00 0. has a new cap/plugs/rotor, not sure what could be causing it. remove the air filter, while running take rpms up a bit and put your hand over the carb almost choking it engine,very high Timing is fine. make sure your dist hold down is only snug enough so you can rotate the base of dist. I went to Cruise Moab and had no overheating issues. also has headers and a dual exhaust. Check coolant level, check that the fans turn on AND spin the right direction, verify that the thermostat opens at 180, make sure you have "burped" the coolant system and gotten the air out of the block, check timing (with a light), it should be advanced further than 0, more like 10* before TDC with the vacuum advance plug. 5-1 compression, a comp cam 280H cam with . Having the intake valve being open too long for i have a 1981 pontiac trans am that origionally came with the 301 turbo i swapped in a small block 350 i built myself, the engine block was from an 84 corvette, stock crank, rods, pistons. Idles and revs fine in Part unless I cant seem to adjust the idle speed to anything less than 850 rpm's Carburetor is Holley Truck Avenger and the distributor is MSD Street Fire HEI that is new with Taylor wires and the plugs are gapped “We often see 195 to 205 degrees for big-block Chevys, but quite often, lower temps in small blocks,” states Michael Harding, director of marketing at Champion. Fuel is easier, just pour a small amount in the carb and see if it will start. The 4. 319 sixty foot on motor. It's electric choke on a holley 4 bbl. 5 mm plug wires, stock distributor, stock E core coil. I was intending to match and port, then try it on my small block with AFR 245NPP heads, or a future build with AFR 220 Comp heads. Leave the vacuum advance A friend of mine is a pretty serious racer and owned a Pro Stock truck small block Chevy. Therefore using manifold pressure as your vacuum canister source you will have the most vacuum advance at idle. You might feel vibrations or hear inconsistent engine sounds when your car is running. The idle was nice and smooth except i had a tick coming from the passenger side valve cover. Assuming compression is OK, then you gotta set the timing and make sure centrifugal advance is working. When my small block chevy motors are cold they both need very few cranks to get started, but when they get hot it takes two or even three tries. Rotate the distributor to the advanced point where the engine runs fastest and smoothest, then back it off just a bit to where you hear the motor slow down some. Check out their shop or give them a call @ Baldys Rod and Custom, 832-412-0043. See less See more 68' Z28- 421,Backhalved,Alky 64' Nova SS "118" VIN Project then engine will never run right. at a 1978 block 350 bored . The carb came off my other race car and worked perfect on it, so i dont think its the carb. 5:1, high-vol oil pump, fresh Powerpack heads, Doug Thorley headers, stock intake, 650 Holley DP, and a used Z-28 cam. Also If you are running an external coil get another coil wire and try it again. I moved the distributor counter clockwise. I can keep it running with the gas pedal until it warms up but it is very rich smelling and seems to be missing. What is the best was to get the mixture right. Look down the Edelbrock carburetor with a flashlight while it is idling and look for any fuel dribbling out of the primary boosters. I was thinking the choke isn't opening and it's dying because of that. It stays running on 4 cylinders. Good oil pressure. SHARE POST #1. Replaced vacuum hoses. IFFFFFFFFFFFFFFFF-----the mark is 180* from where it should be AANNNNNNNNDDDDDDDDDDDDDD its running rough-----you probably are not on #1 ok here goes lol i have a 1981 pontiac trans am that origionally came with the 301 turbo i swapped in a small block 350 i built myself, the engine block was from an 84 corvette, stock crank, rods, pistons. After multiple “fixes” and attempts, it turns out the brake booster is failing. I have personally driven hundreds of thousands of miles on that combo on a Dodge 5. Generally a healthy small block will make around 18~20" of vacuum at normal altitudes, and it will be steady. I adjusted the valves with the It runs, sounds, and idles great for about a half hour under normal driving conditions. So, you may want to ensure the engine is running OK, and with-in Not sure why when you plug up your PCV valve your idle improves but I would start by unlugging the PVC valve to obtain the rough idle, and take some carb cleaner and spray it around the outside of your carburator while the engine is running. 00-inch bore and a longer 68 Camaro, E85 powered 427" small block. Emissions restrictions were still proving challenging for GM and Chevrolet to overcome, which meant continued low power and the prioritizing of fuel economy. 5 roller Small block Chevy 350. I put together a 400 small block chevy for my '79 pickup. What are the Torque Specs for a Small Block Chevy? When it comes to torque specs for a small block Chevy, the general rule of thumb is that the engine should have a minimum of 75-80 foot-pounds before any modifications are made. Products Old school way to set timing on a small block Chevy. did spray some carb cleaner dwn the One reason I changed plugs was that the engine was running a little rough. Install all the hydraulic lifters and pushrods. Speak with a real person (775) 746-4887 (8:00 AM - 6:00 PM Pacific Time) Free domestic shipping on orders over $250. If the idle improves or increases then you have a vacuum leak. Actually, I helped; he was the mechanic. That fan shroud does help with Explaining and demonstrating the process of adjusting the timing on a Chevy small-block engine. It runs well, but Im no master of tuning and Ive got a few questions. Now he serves as a regular contributor to OnAllCylinders. I have a 355 small-block Chevy in my 1971 Nova and just swapped on a set of used aluminum heads. Witha 365 cubic inch small block, 450 hp, and only 1800 lbs, they managed to run a 10. So I took it to another machinist and had the rotating assembly balanced. Primitive Tool 2 hours ago. 030" A variance of +-0 8) Cracked Engine Block or Cylinder Head (Abnormal Cause) Similar to a blown head gasket, a crack in your engine block or cylinder head can allow coolant to seep into the combustion chambers or exhaust ports. Known One of my favorite combo's is APP3924 plugs, MSD 6AL, MSD 8. The balancer from Benson's original 1968 pickup would have this offset Burnout & turbo spooling of a 1968 chevy van with a blow through turbo on a 357 cubic inch small block chevy, running a 68/72 Turbonetics, Hurricane series turbo charger on a custom built hot and cold side. It has stock centerbolt valve covers, with 2 PCV valves both going to a tee, and into the intake manifold vacuum port. - 2 5 6 The example presented to us today has been modified and souped-up a bit. But keep in mind, a four-row radiator is going to require a Re: SBC: Max timing advance at idle? 07-12-06 07:43 AM - Post# 967048 In response to gotta56forme You should have the lowest manifold pressure (most vacuum) at idle. . Possibly a clogged catalytic converter. 1. When the Motor ran from idol on up to about four grand it had a bad vibration and I never could really figure out what it was. I'm assuming you have the 4. Suitably prepped with an external bypass, this pump can reduce spark scatter substantially. 55 with Eaton Tru Trac, full CBR suspension Team Chevelle Gold Founding Member Another alternative is to use a big block pump for a regular small-block Chevy. Customer: i have a 400 small block in a 84 chevy shortbox and it seems to run really rough on start and it almost seems like its not running on all cylinders or something but it shakes and does not run very good at all but after you have it running for quite some time it seems to run normal after. Check those But at idle it is really rough and sounds like it wants to die. big block 88 Big Block 88. On any hydraulic lifter camshaft, the ideal pre-load shuold be 0. GM LS: Napa 7060 - Wix 57060 - K&N HP1017 - AC Delco PF48E. Amazingly, you could take a stock small-block lifter out of an original 265-ci small-block and use it in Hey all! I'm having a little confusion adjusting the valve lash on a small block Chevy. Member. sounds like the ignition module is causing the no fire situation. The unblown A/FD concept of running lightweight, unblown, small-block motors on lots of nitro against the big blown Hemis was close, but no cigar. Both motors have the exact problem and both have Edelbrock 600 carbs with electric choke. its running rough. It's pretty much immediately Edelbrock PN 29785 or Weiand PN 9901-101-1 are "center-loader" EFI intakes that fit conventional nonraised-runner small-block Chevy heads with 12 mounting bolts that are all at the same angle C3 Tech/Performance - What temperature should my small block be runing at? - I purchased my 68 last fall and never really got to run it last year. If you add excessive preload, the engine will run rough at idle. The car runs great at cruise, power, and WOT. The car ran fine until about 6 months ago when one day I just started it and this started happening. I run one of those on a 350 4 speed nova, with a cast iron dual plane that with a milled out plenum. 96 @ 133 MPH, 1. Look for any witness marks like like shiny metal where there should be paint or rust. I can unplug the wires from cylinder 3,5,2 & 8 and it has no change in engine running. Also, it's disgusting easy to reverse the #5 and #7 plug wires, also the #4 and #8. Do the dark test to see if there visible spark jumps. Add a mild blower cam and a larger carb, and you can expect a Adjusting Hydraulic Lifters On Small Block Chevrolet This method is with the engine OFF and spark plugs removed for easier rotation. He won an IHRA event this year and currently lives in North Carolina. Bought my first big-block It really does sound like plug or plug wire issues. Come join the discussion about performance, modifications It runs at about 190* when cruising around town under 50Mph. malc. 25 Days Building Water Slide To Underground Swimming Pool For Underground House . USA1. The maintenance and upkeep of this engine practically bankrupted him, plus between rounds he was always swapping Adjusting Valves Small Block Chevy Get #1 to Top Dead Center Exh. 42 sixty breaking beams with back tire on the bottle 9. I originally adjusted the lash with a feeler gauge before I assembled everything. It's funny because at that point I am backing it out of the garage and it will want to stall. It feels like a very bad miss. 7201FB1D-B7F2-4F86-8974-6F9C3C06D470. Getting about 10 mpg. ok, so I don't think my problem is exactly unique, but im having trouble finding posts that share the exact same symptoms. Flat top pistons, Edelbrock rpm performer, Crane hydraulic roller cam 222/230 @ 50 112 lsa with 505/515 lift. A forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts. 30 over! Dont know much about the motor I just bought it!! I want that rough idle but want it to be good for low end torque & a cruiser. 9 Magnum. Ive thought about a thumper cam but I want somebodys opinion on this!!! Any help would be very great !!I heard you guys on here really know what your talkin When starting cold, there is no choke, you have to run it, ( pressing gas pedal or it will stall) at about 1300 RPM, after about 5 minutes it will idle down to about 1100 rpm in gear. Once I back out of the garage and start going forward it runs fine. 100 long push rods, comp cams 3. As I was driving home last night I noticed that my truck ('75 GMC 290 hp/350 crate, 222/222 cam, Edelbrock manifold and carb) was running rough at stoplights, and it got worse Check the two large hoses that go to the PCVvalve and the brake booster. (Image/Summit Racing – Patrick Miller) Walking around this incredible rig and you’ll notice plenty attention spent on the details too. Check for loose converter bolts or cracked flex-plate. My edelbrock 1405 came from the factory 4 stages lean for 2BBL acceleration, 3 stages lean for WOT, Cruise Now for my advertising: I make a special valve cover for adjusting SBC (small block Chevy) hydraulic lifters I call the “Adjust-A-Cover”. Any idea's what it might be? 49ChevTruck, May 6, 2016. 030 over 350 ) seems like it doesnt want to run as well if i advance the timing - ie turn the distributor counter clockwise. It put out a pint in 30 sec. Yeah, we bet this thing rips. The truck puts out some black smoke whenI give it some gas, and smells terrible. Whether you’re rebuilding a street engine or building a high-performance racing engine, consider this your starting point. After i blew the headgasket on my '62 Impala, I had the heads shimmed, cleaned and replaced the inlet valves. Ever since I threw a rod through the pan on the original 235, and my hubby decided it needed a small block, this nightmare began. 3L is basically a Small Block Chevy (SBC Gen I) engine with two cylinders cut off. Customer Help. 1985 - My first 327 was bored and rebuilt with the help of a neighbor. 100 long push rods, comp The engine runs great. 050 LS112, Speed Pro forged pistons 10 to 1, Trick Flow 195,23 degree heads, Holly 750 Ultra, Edelbrock Performer RPM air gap. A readers ask automotive expert Jeff Smith about a rough-running 383 SBC stroker motor, and here's the diagnostic advice he offered. Before yesterday, the engine was running great, with plenty of power on acceleration, and was the best that it ever ran. A ford taurus and if its a small block or big block chevy the firing order is 1-8-4-3-6-5-7-2 If you bring the timing mark (on the harmonic balancer) up at TDC on the timing tab and pull the cap, the rotor should be pointing to where the number 1 This video shows how to set Initial Timing and Total Advance Timing on 350 Small block engine. Or, have a buddy run his hand all along the wires while running. The little cars were perilously light (under Might have a solution for y’all. Any suggestions. We look at our new Camaro to see if the engine is dead. 67K 4 2:02:50. No leaks anywhere on the motor. We find loose rocker arms on a soild lifter cam. The truck is a half ton 2wd with a TH350 and 3. My 2007 silverado 5. I don't get it at idle. The problem is that when I really get on it like its a race, and i take my foot off the gas, the car backfires. You’ll I'm running a 283 with a 2bbl Rochester and Pertronix ignition. The information Running rich could easily be due to low vacuum signal. Products search. a stuck float will cause the boosters to drip fuel into the intake at idle and run horribly rich. If it's lower than that or jumping around, there's charts all over the net about troubleshooting using the vacuum gauge. The block i am using is a 350 SBC Block #14093638 350 87-95 from a earlie 90's truck i COMP Cams Magnum 292h Cold Start Small Block 350 Chevy with Flow Master 40 series Ruff Idle Sound RawIn this video, I cold start my 1985 Monte Carlo SS after I'm having a big problems with my engine, It all started when i changed intakes. from Buffalo NY. parts. Chevy-Small Block; 350 SBC 180 out of time and still run? Welcome to Club Hot Rod! The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. Known for its reliability, performance, and stout design, the 5. has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. Loading comments 14:19. From its keg-in-the-bed I installed a rebuilt sbc355 into my car and it runs well when I drive it, the only issue I have is that it will not idle well below 1200rpm and is VERY rough below 1000. After tweaking the carb around and unsuccessfully trying to get it to run, I found a good reason why she was running rough, a cracked exhaust manifold! I have no idea how long it was cracked but I ordered up a The End of the First Gen Chevy Small Block 350s. Replaced distrubutor cap, rotor, plugs & wires, electronic modual. NOTE: New lifters do not have to be pre-lubed. I adjusted it to the spec given the instructions that came with Rev it up in park and running very rich, shooting black sputters out the exhuast and plugs fouled out. How to Start Building Your Chevy Small-Block Engine. The spark is delivered via a mallory dual point. Check out a custom Small Block Header Build Kit. 56 @ 125 mph. Try removing it from the y-pipe and see if it runs any better. The only other thing we can do is pull the engine AGAIN! and check the cam. I have a 99 1500 with 5. Learning the proper valve adjustment procedure for V-type engine applications ensures a smooth-running, powerful, and reliable vehicle. It demands a In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. jpeg. It was one of the last ones that he had rebuilt and his health was going down. Tends to run out of air when I get down the 1300. I had a similar issue with poor transition from idle a while back involving a small block Chevy 406 with a Holley 83670 - 670 cfm Street Avenger aluminum 4-bbl carburetor with vacuum secondaries and electric choke. At low speeds or crawling it runs fine. However when it is started it sounds perfect. Comments. Small radiator fast flow not able to cool it before it heads back In to the block -----76' fj40 camcrusier13 build I've got a Chevy 350 that suddenly dies when at idle and when I'm in reverse or drive. Jun 3, 2009 #2 My 454 has always Hi guys and gals. It is running too rich! Oh by the way, my idle is at 750 rpm if that helps. The engine runs great, but I’ve noticed that at idle and at some cruising speeds the engine makes a noise that sounds more like a mechanical lifter camshaft. See less See more Save Share Reply Quote Like. 72 Concours Wagon 5. 002 press you drive the sleeve in, seat it, then set the boring bar back up, and use a tool that cuts the top of the sleeve down to the block surface, and then bore the sleeve to the desired size, using a wet sleeve isnt . Noticed some wear Most aftermarket cams have the advance ground into the cams in the straight up position upon install and most of them regardless of having the average 110 or 112 lobe separation angle are installed with the intake being around 106 or 107 degrees which from research the small block chevy likes. amazon. The description leaves us with a few questions, however we can see a classic combination of small-block Chevy (albeit not running at the moment) Original Chevy block application: GM Small Block and Big Block: Baldwin B6 - Wix 51061 - Napa 1061 - K&N HP3002 - AC Delco PF1218. It spanned two generations of their small block V8, and was finally succeeded by the 5th Generation EcoTec3. Careccia today runs an IHRA Top Dragster with an unblown, nitrous big-block Chevy. The lifters are Rhoads V-Max. 00 MENU. I put a Chevy TBI 350 in my buggy last year. Distributor Wrench:https://www. 02/1. Chevy Muscle Car Tech Tips, Guides, Articles & How-To. Got a 350 sbc in a 48 chevy and i've noticed over the past week or two i've got a tapping/ticking noise when i lift off the throttle when driving it. 7195 posts · Joined 2008 Add to I have a small-block 350 street/strip engine that I continue to play around with. Joined: May 29, 2002 Posts: 3,022. Save Share Reply Quote Like. Basically a non-high-performance, decent streetable rebuild. It all worked very well, and Joe’s homebuilt Funny was soon running high eight-second ET’s. I Watch as we convert this small-block Chevy from a conventional distributor to a modern coil-near-plug ignition. do you know what the problem might be?. 73:1 gears. The 1980s did not start out much kinder for the Chevy 350 engines. www. I would check your coil wires and make sure you have a good 12 volts (if running an HEI or 9 volts if running a std coil after the balast resistor) and by some slim chance have them wired backwards. Then it will rev way up and back down to almost stall and sometimes it will stall and I half to restart the engine. I have a question that i think i know the answer to, but just want to make sure. 4 responses to i can get the car running but have to keep it way up off idle to run. Reasons why i think it is rich: plugs and smell, although exhaust is white color but no smell of oil or The truck starts just fine, go out to it after school, fire's right off. 570/. also it has edelbrock e-street aluminum heads, mild crane came. 3L. EVERYONE that has bought one will tell you that it is the cat’s nuts way to adjust SBC I have a rough idle problem on my 454 that is driving me nuts. Howards roller cam . Hagerty’s DIY series is your handy-dandy, ea sleeving a Chevrolet small block is a simple matter, , it is the process of boring but leaving a step in the bottom of the block for the sleeve to set on , using about . If it is a standard V8 I would try to get that temp down a bit, especially if it is reading that temp during normal operating conditions (ie: not hot out, non heavy use). I've had it That little sign tells us that the truck’s carrying a stroked 357 small block Chevy running World Products heads. On a 1955 to 1968 small-block Chevy harmonic balancer, the timing mark is just slightly offset from the crankshaft keyway. 5. checked the compression while the plugs were out and it came out 245 each cylinder any ideas? Maybe thought with that high of compression the carb cfm is too small and it’s sucking fuel. Race cars quite commonly run stall converters in the 5,000 – 6,500 RPM area and have low rear-end gears so they get TO their peak RPM very quickly. 2 plug wires with iffy insulation can cross fite. , put in new plugs, I don't find any vacuum leaks (I plugged hoses to all 10-27-15 07:29 PM - Post# 2585279 The reported problem was a very rough idle on a 400 small block. By 1962, a 170-horsepower version of the 283 became Chevy's base V-8, but optional small-block V-8s received a full 4. Street cars on the other hand idle a lot and run MOST of the time between an idle and 3,500 RPM or so. Not sure why when you plug up your PCV valve your idle improves but I would start by unlugging the PVC valve to obtain the rough idle, and take some carb cleaner and spray it around the outside of your carburator while the engine is running. Its worth noting that I am running a pcv valve that was designed for low vacuum engines, not really Basically I have a 350 small block chevy bored . Ford Small Block & Chrysler Big Nothing screams awesome father-daughter week like competing in Drag Week 2024 together.
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