mjs1012

iTrader: (36)

Anyone on here use a 5.3 with a procharger? I had the idea of getting a cheap stock 5.3 and throwing in a blower cam and possibly using a p1 or d1sc with it. I wouldnt start doing this for a little while but was just curious. the motor I currently have in my car is a stock internal ls1 and im just worried that the ls1 will be weaker than an iron 5.3 when more than say 5# is put through it. Am I over cautious about using a stock ls1 or would it be ok?

TexasTarnation

Your close, my buddies ls1 went bad w/ 7ibs after 2 or so years. A 5.3 would hold up better, but with forged rods and pistons in your ls1 you will be good to 600-700 hp before you have to worry about the block. The real questions is what is you hp goal? Don't look for how many ibs to push, look for a hp goal and a compression ratio w/ boost to get your goals.

mjs1012

iTrader: (36)

Honestly i would want 450-maybe 475 hp through a stock longblock w/ a blower cam. I just put the 5# in my first post because id want the car to run as safe as possible and i know that with a low boost set up itll be safe.

35thsscamaro02

500-600rwhp is cake walk on stock block if you do everything right. I'm going on a year with my setup. Good fuel good tune and good luck is all ya need :-)

Blown06

iTrader: (32)

If your looking for procharged 5.3 combo's you could look over in the truck forum.