engine

  1. H

    Connecting rod orientation

    Hi, this is my first engine rebuild on a chevy c1500 4.3 vortec with the internal balance shaft, and I got a little carried away when tearing it down and did not mark the connecting rods and caps when I removed them. They have a dimple on them which I assume is to face them the correct way but...
  2. DKT5

    Noise Identifying

    Hi there I have 2 noises in my 1988 k1500 5.7l tbi. The first one I noticed going about 70 mph you would hear a screeching/whirring noise for just a split second then immediately it goes away. Engine warning light comes on.. after turning truck off and back on again the light goes away although...
  3. U

    Best engine swap for 1990 gmc 5 speed manual

    I have a 1990 gmc k1500 regular cab step side which I am redoing. I picked the truck up for 3k no dents or rust. In my area I can’t find a running one without dents or rust for under 5k so I’d say it’s a good deal. I’m doing a project in it. Want to do a classic 90s truck. I’m getting it...
  4. 98sub1500

    5.7 v8 rough idle, hesitation and shudders in reverse and drive only

    First off, I drive a 1998 GMC Suburban K1500 SLE with the 5.7 V8. Not too long ago I had the rear drums checked, front brakes replaced and a brake fluid flush. Since then, never before, for some reason I have the occasional shudder/hesitation while on the accelerator and a rough idle ONLY in...
  5. R

    More horsepower/ pick up

    Hello everyone, this is my first post. So please take it easy on me... Anyways, I'm tying to find someway to add horsepower to my truck. The engine unfortunately seized up and now I'll have to buy a new one. So, I looked into doing an LS swap; but according to several shops (one being a Chevy...
  6. greenz97

    Cutting out during hard acceleration

    I know I already posted a different thread about this but we hit a dead end so I now have a video to give better context. When I get on the gas hard 85-100% throttle the truck cuts out and wont go past 3500 or so rpm. it will hit that rev range and the truck just wont accelerate. it also does it...
  7. NW4x4Chevy98

    Replacing Blown Motor, 5.7... suggestions?

    Thought a lot about the LS swap. But I really want the truck back on the road. I'm looking hard at crate motors and wondering if anyone has a suggestion on exactly what I can put in my 98 1500 that will replace my 5.7 without too much hassle. I can do the wrenching, but I am not a mechanic nor...
  8. D

    All duramax geeks conversion.

    Ok so this may be a longer write up but I would like to get to the bottom of some things hopefully, I have done lots of research but the more I do the less conclusive it becomes... Again sorry for a long write up, I just want to make sure almost everything is thought of and bought/ fabbed up...
  9. D

    91 350 TBI Engine maintenance.

    Hi, I just bought a 91 350 TBI with 267K km and i was thinking about doing the spark plugs, Wires etc. Maybe even distributor and other stuff. Its my first GMT400 and i love it so far. First what kind of cable/Plugs i should use? Does high performance and iridium plugs help for power? Is it...
  10. D

    EGR Delete

    Hey all so I got new JBA long tube headers for my 98 GMC k2500 7.4l and I brought it into the shop and was told I would need an EGR Delete. Well I can’t for the life of me find anything for my 7.4l, I can find stuff for every other but none for mine. I’m wondering if any of you can either point...
  11. Amsterdamned96

    Novice seeking help (wiring/engine rebuild)

    Fellow GM truck enthusiasts, Some time ago I made a thread dubbed “502 Accel 3500” with a different username. I was handed down a truck that was turned down by various garages/mechanics where I live. The harness was damaged severely due to a fire/excessive heat. I thought the air-intake was a...
  12. D

    Stock motor cam recommendations

    Hey all. I actually have a 2001 s10 but it has a 350 out of 1998 chevy so I thought I'd ask here. If it means anything I have also owned a 98 chevy truck for 17 years now. My question is I want to put a can in my engine but I know very little about cams and all that and I was looking for a cam...
  13. Canon Lansdell

    High Oil Pressure

    Hey I need some help. So I bought my 98 Silverado (5.7 350 EFI) at 146k miles with a rod knock. Fast forward, the engine is rebuilt and back in the truck. Oil pressure runs at 70+ psi almost constantly. Oil pump was reused in the rebuild. Also, Cam to Crank correlation sensor is throwing a CEL...
  14. Canon Lansdell

    High Oil Pressure

    Hey I need some help. So I bought my 98 Silverado (5.7 350 EFI) at 146k miles with a rod knock. Fast forward, the engine is rebuilt and back in the truck. Oil pressure runs at 70+ psi almost constantly. Oil pump was reused in the rebuild. Also, Cam to Crank correlation sensor is throwing a CEL...
  15. Kyle H

    Engine knock (newbie)

    I have a new (to me) 1998 gmc K1500 stepside with a 5.0l 305 Vortec. And I have an engine knock I have a small inclination about what it might be. Main or rod bearing. Push rod. Or idk but any help or possible other options that I dont know, are very much appreciated. Engine knock is light tap...
  16. Treyes

    Water in oil need help

    So I'm currently trying to buy a 89 c1500 but in the description it says the oil has water in it is that something serious and should avoid purchasing the vehicle or could it be fixed the truck is going for $800 and its in great shape except for the water in the oil but what do y’all think is it...
  17. T

    Low oil pressure after rebuild

    2 years ago I bought a crate motor through summit racing it is a atk hp74 and it was running fine untill about 3 weeks ago when I was coming home from work and I lost oil pressure. I got it towed home and into the shop and checked the pressure with a mechanical gauge where I still had 0 pressure...
  18. Aelfred-cyning

    262 VS 350: An obvious, difficult choice.

    Hi everybody, first post so good to meet y'all. I have a '95 C1500 W/T that I grew up with since I was an infant (we even have the same birthday). It's in decent shape for the year, at least for a Michigan saltmobile. I finally got myself a replacement frame so that I can start my restoration...

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