Forum: Powertrain

anybody running m/t et street radials? just wondering how they fit, what size i should run, got an 06 silverado 4x4 17" steelies wanna run those...

I want my truck to be louder and im thinkin about cutting the cats off... will it run any better or worse if i do?

Just wondering if anyone has had any good luck with using Seafoam? Through the intake/pcv or in the oil etc. Truck has a small lifter/valvetrain tick...

Guys, I've got to put a new oilpan on my truck and I want to put in some new rod bolts, my question is wat part number ARP do I need, and I'm wanting...

i swapped a 5.3L from an 07 envoy in an 82 c10. got the harness reworked and ecm, tcm tuned. when i first got the harness and ecm back i connected...

a couple weeks ago i was driving around and came to a hill, pressed the tow haul button on the shifter to stay in gear while headed up the hill...

Hey guys and gals I'm new here.Well I need some help with my new cam. I installed a ls1 hot cam in my truck. The truck is a 06 GMC with a 5.3 in it....

Just bought my two new 14" magnaflows today. and i will be installing them tomorrow. I cant wait for true duals.

So I have been searching for an hour, and I'm more confused now then when I started. I have a lifted truck that rarely sees RPMs above 3k. (ok...

can you weld a iron block? there is a crack in the side of the block, by the head bolt threads. it was from not getting all the coolent out of the...

well I am wanting to cam my 07 nnbs.. my mods are in the sig. no motor work has been done. it lacks on the bottom end even with the 4.10 gears so I...

I have 08 l92 intake going on my 03 chevy truck but the plugs on the injectors are larger than before, is there a adapter harness???

i am milling the intake side of my head down and i was wondering how far i could go before i have to modify my intake manifold? and its a 6.0 lq4

Hi everyone. I'm new to this site so any info would help. I have a 04 2500 with a 6.0L. I use it to tow a 12000 lb 5th wheel. I put 243 heads on...

i dont know if anyone has seen this yet, but i figured i would post it give some good ideas. this guy made over 500 rwhp with less than 1500 dollars...

i have a 2000 silverado swb put an ls1 out of a 2004 vette fully bolt on cam 4l60e tranny with a 2700-3000 Circle D stall, shift kit ,corvette servo...

There flowtech headers from Summit. The driver side went on fine. But on the passenger side the collector flange doesn't sit flat. two bolts go in...

my friend has a 96 chevy 4x4, he bought a used transmission from a salvage yard but after getting it home it looks like it is out of a 99 or newer...

found a 14 bolt in a wrecked truck at our shop so i pulled and was getting it ready to swap it in the truck. waiting on the welding shop to finish...

im wondering if i should go ahead and upgrade to flexfuel injectors now or wait till i get my cam..i am getting a custom harness from nelson(when i...