Forum: Powertrain

hey guys. i'm sure this has been picked over many times. but just want a specific answer. i picked up a set of 821 heads for my lq9. came out of a...

ok stupid thing here. Can you tell me how the fuel tank actually mounts. I mean i know that it used straps and slips in a bracket at the front and...

Had trans rebuilt and if left in D or OD it shifts out fine. Hold it in first for a burn out or when racing from a roll and it hits 2nd as soon as...

Hi, I'm new here. Just changed gears in my 03 silverado from 3.42 to 3.73. The transmission shifts funny now in the 2-3 shift and into the 3-4 shift....

Howdy, LS newb here with a GMT400 truck that already has an LS swapped into it. Can't seem to see casting #'s on the back of the block no matter...

Transmission is slipping when going from 5th to 6th gear intermittently, seems to be getting worse though. Truck has 79,000 miles on it. I had...

Hi, Yesterday, I dropped my fuel tank out on my 88 Blazer and swapped out the old fuel pump with a new one that, for the most part, is nearly the...

Has any one ever had a problem getting the cover off? I'm doing the corvette 1-2 servo and for the life of me I can't get the cover to break free. I...

I just had a local shop install a Yank SS3600 converter in my 2005 AWD SSS this week and the guys at the shop spotted a few problems. There were some...

I'm swapping a 4.8 into a 2003 4.3 4x4 with a nv3500 trans. I need some info on the clutch and flywheel for a 4.3 to 4.8 5-speed. Will the one from...

A LONG time lurker and drooler here...meaning I have have been waiting for my 94' TBI to die and it finally spun a rod bearing. With this said, I am...

Its for an 07 Tahoe PPV Here's my problem. When accelerating it drives fine and shifts fine. It's when I'm at cruising speeds, doesn't matter...

In the past I have only replaced them when they throw a code, but I see how over time they get lazy and slow. does anyone ever just change them?...

http://www.performancetrucks.net/forums/towing-offroad-performance-168/5-lug-conversion-531090/ Please tell him Blown06 sent you! You'll...

I have always changed my own oil using Mobil1. When we purchased my 2013 Silverado Z71, the salesman (personal friend) snuck in the service plan for...

I have been reading for two weeks on different sites, about swapping my 5.3L for a 6.0L. I have found alot of good info but nothing concrete on the...

I have a 1999 ecsb 4x4 with the 4.8. I want a 5.3 engine for it. Wondering if i could just do this: Tear down the bottom end of my 4.8 and buy a 5.3...

I have more carnage to wright off, i twisted my axle shaft off playin in the woods this weekend. The tru track and 4.10s made it safe lol. Im...

I have been wanting to replace the 4.8 with a 6.0 in my 1999 ecsb 4x4 for a while. Looking for engines, the only 6.0 engines that are possibly...

I have a 1999 silverado with the 4.8. From what ive read, only 2001-06 engines can have the castech heads that can crack, so i should be safe with...