Hey guys I currently have a stock longblock 5.3 with the LSA blower and a 2.75 pulley. I get around 11lbs of boost. I kinda like the idea of sticking with a stock longblock but I am considering swapping to to a LQ4/LQ9 or LS1 when this 200k+ 5.3 lets go.
I will also probably go down to the 2.55 pulley if I go to a bigger motor keeping boost roughly the same.
Anyway I'm just looking to hear some guesses of the RWHP from a setup like this.

I've searched around and haven't seen many people running more than 7lbs on stock cam 6.0s with dyno results.
I have seen a lot of guys on the gto forums run maggies on stock longblock ls1 motors and they seem to be able to hit 500rwhp+.

Seeing that the ls1 and 6.0 truck motor share the same cam, could I lay down 500rwhp with a stock cam 6.0 and 11lbs of boost?

Thanks guys.

 

Id say depending on Dyno, and albeit the forums i looked at(ctvs) and although its a lighter car with a 6.2, ive seen over 650/700 with supporting mods! Our trucks are heavier.

 

A stock 6.0 at 11psi should hit that without issue, a cam will make a huge difference.

 

My 6.0 with a Whipple, headers, blah blah and a 218/224 cam made 484/463 on 8psi and a rich tune.

Almost 600 crank.

 

what kind of dyno?
....

I wonder how much of a difference the high compression of the lq9 and ls1 vs the lower compression of the lq4 make for horsepower?

 

Not a whole lot.

 

Dynojet 224