233239SS

I have a 02 LS1 with 233/239 .595/.603 texas speed cam and plan on installing PRC stage 2.5 5.3L heads with stock gaskets. I am debating whether to mill them to 60cc or not. I do not want to flycut but the added compression i believe would benifit me. Just wondering if anyone has this set-up and could tell me if flycutting was necessary.

RARON455

iTrader: (35)

I would contact TSP thats gonna be close, they will be able to tell ya if it will.

Sales4@Texas-Speed

iTrader: (4)

I am not sure that there is enough room to do that on these heads. If you do have them milled for it already I would make sure to check clearance before you fire the motor over.

Exidous

iTrader: (11)

Aren't the PRC 5.3L Stage II's a 59cc chamber already?

Jon@Texas-Speed

iTrader: (18)

No sir. They start at 62cc. You can probably mill them .010" or so but that's going to be it with that cam.

Jon

233239SS

What PTV clearence is considered safe

Jon@Texas-Speed

iTrader: (18)

Most would like to see PTV around .080".

Jon

PREDATOR-Z

.08 int and .100 exhaust

180ls1

iTrader: (4)

ya you will really need to watch it, if you mill even a little bit i would make sure to check clearance.