Mill'n 243
 

Sup guys
Thinking of sending my 243s to get mill I got a 2007 5.3 I'm doing N/A setup an I wanted to bump up my compression but be at 91octain no race gas or e85 how much should I mill um to I talk to some other guy from here an he recommended me to do 0.20 as for cam I'm kinda leaning to the Texas speed ms3 cam an LS6 manifold an 42# injectors. I wanna brake the 400 rwhp on my notch an as for trans gonna be a turbo350 RV 3500 stall.

What do you guys recommend me to do

Thanks

first find a reputable shop to do the work, then they need to CC the heads and see where they are at...

My 243 heads came in at 65cc and alot of them measure in at diffrent CC's, so a .20 mill is too generic and won't give you an accurate CC so you can figure CR..

And if you mill too much then you'll have PTV clearance problems and might need valve reliefs, I would search for ms3 combo's and what CC head they are running before they needed valve reliefs...

Welcome to tech and goodluck searching

That's wat I don't want to have that problem on clearance ill do my homework an reasearch on combos wit ms3 cams thanks

yeah you could always hit up texas speed and chit chat with them since they sell that cam like hot cakes and can set you up with the perfect combo for you..