Forum: Powertrain

Need some help guys, My throttle body has been sticking, so I took it back to the dealership (for the third time), they said that they cleaned out...

I am looking at some cams that Trunder Racing has. Both of the cams are 224/224@.050 .563/.563, but one is 112LSA and the other is 114LSA. What is...

King Cobra Ram Air Or Velocity Stack Do they work good or is it all just hype?

why does my milage suck so bad 11 city 6.0 ccsb 1500hd 4x4 305 70 tires. i tried a tb helix spacer and vr velosicty stack, noticable power increase...

All right guys, Going to change the exhaust out and was needing some help with x-pipe placement. Planning to true dual, so I am going to need to...

I have heard some horror stories about 4L60's...I know the stock ones wont hold up that much but I was wondering if anyone had something like a...

How do i know wheather my truck has manifold air injection? 99 5.3l extended cab from louisiana?

Ive got a 99 silverado with a 5.3l I am having problems with it starting from time to time. When it is cold from sitting all night it starts like a...

Since I am changing my head gaskets on my 4.3 V6 I am getting the heads shaved, valve job, and going from a 1.5 to a 1.6 rocker as well. Will this...

I have an '03 Av 1500, with the 4l60 tranny. Every shift kit i have looked at only goes up to '02. Is there any company out there that makes a shift...

I AM HAVING SOME TROUBLE WITH OIL CONSUMPTION HERE LATELY [ PAST 6 MONTHS}, AUG. 2004 WHEN I CHECKED MY OIL AT 2500 MILES I WAS A QUART LOW, GOT THE...

well the ups man just delivered my new updated verter today. 2800 on motor. the last on was set up to launch on nitrous. cant wait to put her in.

I have a 95 sierra z71 with lots of mods. I want to do an LS1 T56 conversion. I dont care about the 4wd anymore, its only a good weather vehicle now....

Yeah my waterpump was leaking so I replaced it last thursday, then today I notice that the head gaskets are leaking on both sides of the moter ...

Went to the strip and discovered that under full power the 2-3 shift is severely delayed. THe engine bounces off the rev limiter while it's waiting...

Hey guys, im new to the forum but have been around LT1's LS1's since i was 16 and started researching heavily into these motors and modifing every...

I'm looking for quick & dirty ways to drop some compression on a 4.8 for a turbo install, and was wondering if LS1 heads would over-hang the top of...

Possibly a dumb newbie question, but I read that you can leave the valley pan and intake on, because to change the cam, you remove the rockers and...

HEY I WAS JUST WONDERING ON A STOCK 6.0 WHAT KIND OF LIFT IS SAFE TO GO WITH? WITHOUT HAVING CLEARANCE ISSUSES. ANY SUGGESTIONS ON A GOOD...

Hi Guys, While looking at the GM engine data on the web, They show Torque figures at 4000 RPM for *both* the 5.3 & 4.2, and the HP figure at...