Forum: Powertrain

does anyone know if Allen sell a cross over pigtail to install 60# injectors(from magna charer)on a 6.0L thanks

iam new here and have a few questions. iam building a 67chevy swb fleet side. the rear end gear is 3.73. the motor iam using is from a 2006 hd 2500...

Only has 1-2 shift. Fluid fine and was working when parked last night. Then this morning backed out of driveway and noticed that it did not shift...

i was wondering if anyone has the zippy stealth kit, and the trailblazer converter. also who has both installed on a naturally aspirated 5.3 liter...

Just picked up my 01 5.3 wiring harness from a motor that had like 75k on it for like $250. Anything I need to look for to see if I would run into...

A simplistic explanation of timing and how it affects performance:

Some good (very basic) info pertaining to cams (again....newbs :lol:). The phrase "perfect for a street-driven engine" mentioned in the article is...

Some pretty general information, but questions are still raised from time to time (newbs :lol:)... Keep in mind that some header companies and...

are all these DBW or can a cable throttle body be mounted to one and if so what size a 85 or 90 mm..

does any one know the injector size for the 8.1 vortec... also does anyone know if they will fit into a 4.8? thanks

has any one swaped in an ls2 cam with the cam sensor on the front cover?

How much power can these support? Is 500rw on their ragged edge?

I cant afford to lose another tranny on my truck. The warranty wont cover it no more since i already replaced it one time already... Can anyone...

does anyone on here recommend true duals on 07 nbs with the 4.8 in it? if not then what is a good flowing cat-back that doesn't have excessive...

A guy is selling an 04 harness that is set up for DBW like the one on my 2001 5.3 that I have. Will this work, or should I just look for an 01...

have any of you done a cam swap without new springs? and if so how big was the cam?

to start out ive got a 2001 gmc sierra ext cab with the 4.8 automatic. im making a turbo kit for it, but one problem i keep running into is that the...

hey im currently working on my 2003 silverado ss, i just instaled my cam 581.lift intake and exaust, im working on changing the valve spings and push...

if i took off my cats with long tube headers on my 05 4.8 will it mess up my sensor. will the check engine light come on