88bluchevy

i have a 2005 lq4engine with Texas speed prc2.5 heads, comp cam 231/237.614/.621 at 113 lsa cam. It has Holley hi ram intake with ford racing 42lb injectors. Walbro 255 fuel pump. Upgraded trunion kit and ls7 lifters and we figure around 10.7 CR. Just curious as to what y’all may think it’ll make on motor before nitrous.

HCI2000SS

iTrader: (2)

Which PRC 2.5 heads?

88bluchevy

Prc 5.3 2.5 heads

ragtopz28

iTrader: (57)

~450rwhp

HCI2000SS

iTrader: (2)

Ok I have those heads as well. The dyno number can largely be effected by the trans type and type of dyno, so I'll say anywhere from 400-450

rpturbo

iTrader: (47)

And location of the dyno, the cycle of the moon, and 100 other things.
OP it should feel pretty stout and make you smile when the exhaust sings!

wph351

iTrader: (3)

Will be interested in your results. I'm putting together a SBE lq4 with shaved AFR 205's and a btr stage 3 truck cam. Post up results if you get it dynoed. I'll do the same.

allblackedout5

iTrader: (18)

Depending on weather, trans and rear end its going through, and type of dyno.... as others have said anywhere between 400-450rwhp is great estimate. If I was a bettin' man I'd say 432rwhp. Just for *****.