5.3 heads guys get in here.
PRC Stage 2.5 5.3 heads milled to 60 cc. Compression roughly 11.0:1. Trick Flow 228/230 cam @ 112 LSA. Ported FAST 92 and every other bolt on (except EWP). M6 + 10 bolt w/ 3.90 gear. Put down 438 rwhp and 409 rwtq N/A. Cleared 600 rwhp with a 150 shot (guess the jetting was a bit conservative compared to the actual output).
I was in a similar spot as you before the heads and the FAST. Nice mild cam and the car already made good power. The heads helped power throughout the band but the biggest seat of the pants feeling was down low. Adding the ported FAST on top of them really kicked in hard up top. All-in-all it makes for a strong, very streetable setup.
I was in a similar spot as you before the heads and the FAST. Nice mild cam and the car already made good power. The heads helped power throughout the band but the biggest seat of the pants feeling was down low. Adding the ported FAST on top of them really kicked in hard up top. All-in-all it makes for a strong, very streetable setup.
Hmm, yeah, except I made 43x/40x with a LS6 intake and LSK cam, then went to 43x/39x with a XFI cam and ported Fast 92. Different dyno's on different days, but I wouldn't have expected a cam to cancel out the Fast 92.
