Been scrolling the forum for a while and figured I better sign up.

Running a 99 silverado extended cab with a sloppy stage 2 cam

Soon to have 317s and possibly may throw some forged pistons in it because its also getting a turbo before LS Fest in April

 

Get upgraded rods too. The stock "I" beam rods don't like a ton of boost and power.

 

It has 4th gen rods but has hyperunetic pistons those are my fear with boost. Going to try and swap them before I get to crazy

 

Scat has a budget replacement rod that should be stronger. Keep in mind the OEM is a powdered metal and the Scat will be a 4340.

Scat Pro Comp I-Beam Connecting Rods 2-ICR6100-944
https://www.summitracing.com/parts/s...0944/overview/

 

is that gonna fit in the truck?! ram air from behind the passenger headlight?

 

OP, good call on forged pistons. Going with forged rods as previously suggested would be added insurance. We would recommend Scat SCA-26125716 6.125 in. length connecting rods. These have a .927 in. pin which is common for aftermarket pistons. Another rod option would be our Summit Pro LS connecting rods. We would recommend the SUM-LS6125927. This is a 6.125 in. length rod with a .927 in. pin. These rods have been tested over 1,200 hp in boosted applications.

Our Summit Pro LS pistons would be a good candidate for this turbo build. We would recommend the SUM-299927400012 with a 12cc dish. These would net you around 9.2:1 compression with a 71cc 317 head. These are designed for a 6.125 in. rod with a .927 in. pin. These pistons are good as-is for up to 1,000 hp boosted.

We have the option of a Pro LS piston and rod kit that comes with rings. We would recommend the SUM-PR36L00012 which is a combo of the above-mentioned Summit rods and pistons.

 

Welcome to the site!

 

I'm not going too crazy. Its my daily for now. 5-7psi street tune and will never see over 14 on this motor. Also will be fuel limited around 500whp just because I know I'll keep adding more boost till I run out of something when it hits the dyno.