engine

  1. B

    Weird engine stumble / misfire

    Sorry if this is the wrong place to put this thread I’m new to the forum and only really use facebook groups. This is kind of a long one but my truck was running good until I switched over to an mpfi spider injector system (a “reman” acdelco unit from a guy on eBay) and after installation the...
  2. H

    My engine won't stock running rough at idle and surging when releasing the brake pedal...

    1994 Chevy Silverado C1500 Chevy 350 and 4l60E I currently reside in the worst state of all, California. I've tested the O2, coolant temp, IAC valve, and TPS sensors for any problems. Also used computer software for monitoring the data in real time. Everything looked fine, except for 20039...
  3. O

    Sum-8802 Cam swap issues

    I just finished up a summit 8802 cam swap with matching lifters, springs,locks,retainers. Also installed new cloyes timing set, blackbear mail in tune on my blackbox. I have no cats no egr headers and a cold air intake. I got the distributor set perfect at 1k rpm. The truck starts right up cold...
  4. W

    Need options for a new engine

    Hey Gurus, I need some opinions from the guys who do everything in their own shop. I’ve got a 1994 K1500, 350 tbi, nv4500 manual transmission. With the 4 wheel drive and the extended cab with a stepside bed, I plan to keep this truck forever and I’ve fabricated front and back bumpers and soon...
  5. M

    Drivetrain swap, stuck between couple options

    So I’ve got an 88 1500 single cab with an original 305. I saved it from a junk yard with the tranny being the only issue, long story short swapped the original th400 for a used 700r4. So with the used transmission combined with the odometer stopping at 340k miles, I’m not the most confident in...
  6. H

    Throttle is hesitant, and can backfire when I give decent throttle (finally corrected word)

    1994 Chevy Silverado Extended Cab with a original 180,000 mile Chevy 350 TBI and 4L60E. When it becomes time to speed up quickly, the engine is hesitant, and just backfired once this morning. When giving just enough throttle to drive around normally, no problems... What could this be?
  7. Dub1990C1500

    Oil Pressure Low ‘90 5.7 TBI

    EDIT: turns out I put 5W-30 last oil change, gonna switch to 10W-40 and hopefully that’ll be the end of it. Yesterday I installed a mechanical oil pressure gauge and last night I only drove around the neighborhood a couple times. On start up I’m getting 30psi, needle reacts with engine revving...
  8. GMT400N00B

    How Effed am I ?

    1990 5.7L 350 So I had my pushrods, rocker arms, rocker nuts and rocker balls all stuck into a template that I made from a cardboard box in my garage that was on a shelf. The box somehow fell and the rocker arms and hardware all fell onto the floor but the pushrods stood firmly in the box...
    • GMT400N00B
    • Thread
    • engine push rods rocker arms valve stems valvejob valves
    • Replies: 16
    • Forum: The Garage
  9. C

    Code 32 and hesitation when cold

    1994 k2500 6 lug w tbi 350 and 4l60e trans. When i start my truck in the morning it always fires up no matter what but when i start driving it stutters and hesitates (later goes away and drives normal as it gets up to operating temps) when i get on the highway everyday i pull code 32 every time...
  10. GMan17

    Should I buy this engine?

    I’m looking to upgrade from a 305 SBC in my 1990 C1500 to a more powerful engine. Does this 350 SBC look like a good deal for $2900?
  11. B

    5.3 Vortec from a 2007 GMC 1500

    For whoever is looking for a 5.3 Vortec engine, at the PullAPart in Memphis, TN, they are selling this one for $650.00 (see pics). Just seen it this morning that I am in Memphis and was killing some time doing a junkyard scout.
  12. GMan17

    Should I purchase this 350 SBC

    Hi, I’m looking to purchase this carbureted 350 sbc to swap into my 1990 C1500 that currently has a 305 sbc. The seller said that it “Ran great went with a ls swap stage 2 cam in it also.” Do you think this would be a good purchase for $600?
  13. GMan17

    Truck randomly dying when stopping and bad smell when starting truck.

    My 1990 C1500 has died twice while coming to a stop. It started back up after a minute of waiting both times. The smell when it starts is kind of sulfuric and it idles a bit rougher than normal. I’m thinking that it might be the EGR valve. Any thoughts?
  14. T

    6.2 Summit block

    (I am not a car guy, be kind) Hello I have a Chevrolet Performance 6.2L Block from summit: Part Number: NAL-12673475 I am asking for help with heads for this project. I want to eventually hit the 400hp goal I have a “Tremec 5 speed GM TKX transmission 600 lb-ft torque, Max RPM 8000, Max shift...
  15. GMan17

    350 SBC Cost?

    How much should I pay for a 1993 350 SBC out of a cadillac at about 150k miles that rotates freely. It originally was TBI, but was converted to carb. It comes with an Edlebrock carb and intake. I am looking to purchase it and upgrade the cam and headers. This would replace the 305 in my 1990 C1500.
  16. Fred5280

    Alternator to battery post

    I’m having an issue with my alternator, the stud that has BAT stamped behind it is just spinning inside the alternator housing is there a way you guys would recommend to fix this maybe a stud a next size up? or is the alternator done this is on a 92 c1500 w a 350
  17. P

    Rough Idle with AC on

    Hey yall, so I have a 94 c1500 5.7 v8. The AC ALMOST works. I replaced the ac compressor, orifice tube and the accumulator to get my ac to work kinda right. The only issue is that if I stop at a red light and idle with my ac on then my truck will shutter as the compressor kicks on and off over...
  18. O

    truck boggs down when accelerating

    hello all, long time lurker first time poster here; 1998 GMC Yukon SLE 4x4; 5.7, 4l60e, 10bolt rear TLDR: truck shows 2 codes p0740; TCC solenoid, and p0452; FTPS low voltage. recently did a mild engine refresh with a few performance parts, and a Blackbear tune, the truck feels really sluggish...
  19. ralmo94

    Valve spring question

    Hey all, as the title says I have a valve spring question. Having never built a motor myself, I've worked on quite a few, mostly my own, or friends stuff.. I have a 98 l29 454. I have a GM performance parts camshaft for it. I had purchased a set of springs for the cam change, they might be a...
  20. J

    Motor issues

    So I am restoring a 94 C2500 she’s definitely a fixer upper but this is my first pick up and I’m gonna put as much money and time as she needs. With that being said, she tries to start. She sounds like a tractor when trying to start. Her idle is horrible, when she starts at all, most of the time...
  21. Z

    1990 C1500, Strange Stalling Issue

    Hey Everybody! First post but I have been lurking for a bit ever since I bought my truck a while back. I have a 1990 Silverado RCLB C1500, with the 350/5.7L & auto trans. For the most part it idles, drives, and starts up alright (or so it seems.) I get about 30psi of oil pressure at idle and...
  22. hilly101111111

    Rough Idle, hesitation and bucks

    I have a 1990 GMC k2500 5.7/turbo 400 trans. It always had a rough idle and when I drive 50mph - 65mph it kinda bucks and skips and it'll be flat when it happens and I have my foot on the pedal like 1/4 of the way. The truck had a ton of new parts on it including a fuel tank sending unit pump...
  23. ObsBrian

    Need help with shaking.

    I have a 2500 and a 4.3L vortec and when I come to a stop sign/redlight the front end has some shaking to it and it smooths out when you get to 10+ mph. Any suggestions on what it could be or a solution?
  24. zampman

    Engine locked up?

    Hey there gents, Got a '97 K1500 Z71 with a 305 and 4L60E. Couple days ago, went to start the truck after not using it for about 8 or 9 days, and it cranked one singular time, then nothing but a single "ka-chunk" sound. Everytime trying to start after that, you would just hear the clunk and...
  25. T

    Not starting after doing a De-Carb on engine

    I really need help! Yesterday I did an engine de-carb on my 1988 k2500 at work. Nothin unusual happened while i did the de-carb and I even drove it home after without any issues. However after letting it sit all night i went to start it this afternoon and it doesn't crank I only here the starter...

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