Forum: Performance Modifications

-------------------------------------------------------------------------------- im new to these sights and pretty new to the truck era. i used to...

I picked up a set of Fully CNC'ed Ported and polished 706 heads and im planning on getting them looked over and throw them on my setup that is in my...

how much does a new 5.3 block cost and who sell them that will ship? thanks

Spectre can be had locally and not have to worry about shipping, MIT is a lil cheaper and I already have a K&N element in the factory box Im...

so since i decided to ditch the intake manifold idea for now i was wondering what the stock bore for a 01 5.3 throttle body is? i wanna get a bigger...

well guys as i posted before ,which didnt seem to get any help on, after installing the flip kit i have bad driveline vibrations. was told my pinon...

Well I sent my old PI vigilante torque converter back to precision to be cut cleaned and restalled. I am planning on selling it once I have it back....

ok so tooling around on ebay tonite i see some ls1 intakes for bids, and one of them is the FAST lsx intake. so my question is will the ls1/ls6...

I have an 09 sierra 5.3 w 6 spd trans completely stock . The 6 spd shifting is fairly annoying around town. A buddy of mine has HP tuners that he...

Alright i have completely modded the truck out and am now adding a sweet nitrous setup to it and am hoping for mid to low 11's. There is pretty much...

Well this is what I am gonna end up with with my forged budged build. I seems to recall Allen making pretty good power with a 10:1 engine. I am only...

Pulled the 5.3 out last week and found an awesome deal on a ls1 with low milage so i snatched it up..i'm tryin to get it put back together but can't...

My 4.8 is hurt, I installed a comp 224 cam in it about a week ago everything was good untill I lost some oil pressure. I pulled the cam out today and...

Hey guys, looking for a dual 3" into one 4" merge/transition exhaust collector, any of you know where to get one? Preferably in stainless steel.

Im rebuilding my lq4 and looking into either using the caddy or ls7 lifters ! Whos got any info

I have a friend who has a 2004 chevy silverado 4.8 auto ecsb. Mods are magnaflow exhaust, Richmond 4.10 gears, Dynatech supermaxx headers, and a...

Done 3 oil changes with my trick flow valve springs and the last 2 times i found peices of the inner spring stuck to my drain plug. I removed the...