jerkyboy

finally got this thing done! Just in time for two weeks of rain

Anyone want to take a guess on hp?

Here's what I have:
LS-7 WCCH stage 1 ported heads - stock compression
Comp Cams custom grind: .630 int .631 exh lift 232 int 244 ex duration on a 112 lobe sep

Stock LS-7 intake
Stock LS-2 TB
1 3/4" headers from my LS-6 running through hi flow cats + x and axle back

LoneStarFRC

Upper 400s, maybe very low 500s.

tlove32

530'ish rwhp / 480'ish rwtq

jerkyboy

Came it at 547 rwhp and 498 rwtq @ 6164 RPM (SAE)

Interesting as the engine dyno came in at 618 chp at 6200 rpm

AzDave47

Which ARH headers? 1 7/8" or 2"? LS7s like to 2" best.
Your numbers seem OK to me for your mods. MSD intake and NW 102 will net you most of the difference to the bigger numbers you hoped for. Also, dynos can vary quite a bit. For Stock LS7s, I have seen reported rwhp SAE Smoothing 5 reported anywhere from 425 to 475.

1/4 mile or 1/2 mile trap speeds, knowing the DA, are a good measure of the power you have.

Speedy007

Decent for N/a

Time for a C-5

Nice N/A build