Forum: Powertrain

I was wondering if anyone over here would happen to know how much lift you can do on an LQ4 untill you need to put valve reliefs on the pistons? Cam...

well my transmission took **** on me on the way to work yesterday 103k miles. It started earlier in the week having problems shifting from 1st to...

Got a buddy that has the stock gto cam out of his car and said I could have it if it would be worth the trouble. My truck is a 00 GMC 4x4 5.3 auto,...

Ok. Burn plastic and upgrade to a FLT 4l80. Jeez thats a ton of cash.. . . . Have the 4l60 sent back to FLT and rebuilt. This is a reasonable...

Well FINALLY got the rearend put back together. Just as i thought it was time to rejoice..... Disaster. Put it in drive... no drive... Put it in...

Well I am going to send my Level 5 in and have it resfreshed. I can not afford to upgrade to 4l80 considering I just bought my wife a 5k bedrrom...

My truck is making a hellacious noise underneath, and it's not a u-joint on the drive shaft. I can rock the yoke that slips into the back of the...

I finally put my cam!! Man do i like the extra power. Im getting a Dyno tune in January. I have a tune to just get me by for now. I am wanting to add...

Ok so im haulin sliding around a curve in a blaze of tire spinning glory when my left wheel hit a drain grate then a huge pop follow by smaller pops...

I have a TR 220/220/ .556/.556 on a 112 + 4 cam. I bought this for my 2001 5.3 that has full bolt on's. My intentions were to install this cam...

Well I still have the oil pressure problem. It idles at a little over 20psi and when im moving its at 40psi and when I floor it its about at 75psi....

When I had my old Z71 I found a good deal on a front and rear ring & pinion set. But they weren't made for IFS so I just left them laying around. Now...

After christmas I'll be able to spend about $1000 on the truck. What should I do? I want to go FI, but obviously that can't happen for that little....

I have an 03 z71 extended cab. 5.3L, 4" lift with 33" tires, the 5.3L isn't where i want it to be in the power range. I don't want to change my gear...

I am rebuilding my 80e currently and thought I'd see if anyone posted a build topic. Here is a really good one I found building back for...

Well this weekend I'll be putting the new turbo set-up on my truck and I still can't decide what do about my transmission. My truck has a 5.3/4L60e...

please delete, put in wrong forum thnx!

Last winter I noticed a few drops of coolant on the garage floor now and then, after my truck had been sitting for at least a few days and once the...

Got down to where we are taking out the Axels. The C clips holding them on SOMEHOW (dont ask me) got bevels by all the beating from when it came...

I just got a steal on a 6.0 and 4l80e im gonna be swappin into my 1994 z71 and this truck is everything but stock. Im going to be keeping it street...