Forum: Powertrain

I am looking to get a set of heads for the 4.8 I want some thing that is going to flow good, and I want to have them milled to raise the compression...

will the transgo shift kit jr (T74167) fit my 07 classic. it just says its for an 86 or newer. Someone told me that it would only work up to an 05?

could it hold LT's, 206/212 comp cam and tune without any problems or it blowing up? I drive normal but get on it whenever i feel like it haha

I have a question maybe you guys can help me. I have a 2008 silverado truck w/t SL and I bouth a new claster gauge with a new red face and bezel from...

So I am fed up with my newly built trans that wont lockup......I am debating spending the money on a Finish line trans. My question is what level...

Just want to see what pressure every one is running at. Mines 25 idle 40 cruz and the same WOT.

good stock info General Motors Gen III V-8 Cylinder Head Comparisons - Car Craft Magazine

nvm

getting this slight rattling sound from inside the engine. Does it when you just come off idle and giving it very little throttle sometimes just...

So i installed this $60 Ebay no name intake a few months ago. CAI And i always wanted to seal it off from the engine bay, just never got around to...

so my a/c isnt working its blowing air but its like 10000 degrees i put 2 or 3 cans of a/c bottles thingy but its not workin so can yall help me out...

I know of alot of people that are running 243s milled down on a 5.3... Is it possible for the l92 heads to be milled down and run on a 5.3... would...

are they worth it? cause i was thinking bout getting one for my mom nali. but if thyre not then i wount.what are the pros and conns of them?

Anyone rebuilt a LS1 style 4l60e with a red eagle alto kit? If so where does the thick steel go on the 3-4 clutch pack? Im kinda stumped right now...

Hey everyone I purchased these Moto Blue Underdrive Pulleys like a year ago and finally installed them "not on my truck", but on my mom's 04 Chevy...

How hard is this? I guess if I ask....its too difficult?

I installed the rebuilt valve body today that was supposed to fix my lock up issues. However my problem is still there. Converter will lock and...

I am wondering what I should add next? I was thinking about a bigger throttle body, or injectors? I have no tune yet and I hear NELSON is the best....

I have a used a/c compressor I bought back when I bought my truck. Other than just putting the new one on and charging the system, is there anything...

Found this article doing some head research. Pretty good info. Testing The New GM L92 Cylinder Heads - Car Craft Magazine