spawne32

iTrader: (2)

5.3 LS4
reconditioned 243 heads with 12499224 "blue" springs
214/218 .540/.537 115 LSA schneider cam custom grind
OBX shorty headers with 3" Y pipe w/ 300 cell cat
cold air inductions intake for stock 75mm throttle body
stock LS4 intake manifold (future upgrade to LS6)

all of this behind a "stage 3" TEP 4t65eHD on a precision 1900-2100 stall.

any thoughts on what she will make? stock LS4 puts down 303/323 crank, which is about high 240's to the wheels. Figuring on a 18-20% drivetrain loss.

HISS

iTrader: (52)

340 ish

spawne32

iTrader: (2)

really? with or without the LS6 manifold, even with the LS6 manifold i was only thinking about 315-320. lol

HISS

iTrader: (52)

My cammed bolt on 5.3 made 330 with 706 heads and stock intake through an auto and 2 piece driveshaft. 340 isn't unreasonable.