Forum: Powertrain

Hey guys I'm trying to figure out what to run for mufflers. Right now its straightpiped with no cats and its too loud. I had a flowmaster super 44...

It's about time to start making the truck faster. I want to get a Walbro pump/tune/(injectors?) from Nelson, and am going to FINALLY get rid of...

im doing a cam swap in my 6.0 i took the heads off and lifters out to inspect everything can i reuse the head gaskets and bolts not sure if they are...

Well I have had a sd tune for a while now and love it. One of my Gto buddies is also sd tuned and he did a iat sensor relocation to get more accurate...

i have a bbk 80mm throttle body and was curious if it would be okay to put it on my 03 5.3 without a tune. the truck is stock other then exhaust.

what the max. lift for stock 5.3 valve springs? i just purchased a tr224 .563 114" i was wondering if stock valve springs will work? if not how hard...

im doing a cam swap on my 6.0 engine im putting comp 918 springs and new push rods but wasnt sure if i should replace lfter the engine has 47k on it...

After only 140,000 miles, my stock 5.3 has died! Is there anyone that knows of a shop in northern California (I'm in Sacramento) that is reputable...

So can you run a diesel muffler on a gas engine? What are the pros and cons of this mod.

So does anyone know what the biggest cooler u can get?

This is how I installed a Hayden 678 trans cooler into a truck with a stock atf cooler Fallow at your own risk, I take no responsibility for damages...

So I decided to recharge my A/C this morning since it's never been done and the compressor was cycling a little more than it should. When I...

i bought a magnum performance module. Does anyone know anything about them? are they worth putting in?

So I purchased a 2004 LQ4 6.0 out of a water damage 2500 HD. Only had 60,000 miles on it, and wasn't turned, but you will see its not a pretty sight....

Anyone tried this cam? Massive lift... :( COMP Cams® - Cam Details

so pulled off the intake manifold yesterday to find THIS: a PILE of dirt clumps. thats exactly how it looked when everything got...

So i found one on craigslist. Has anybody ever thought about this or would it not even fit? Like new LS3 intake with fuel rails and injectors

my truck - 01 ext. cab im doing the 80e swap and have been told that the stock 2-piece driveshaft will still work (assuming i get the right...

its from texas speed its a 220/220 .581/.581 i wanted a good cam for low end cause i tow alot but wasnt sure if it has to much lift im using a stock...