If you are running a roller cam you need to use #302 , #308 , #576 , magnum or trickflow heads . Any other head will require the pushrod tunnels to be enlarged.
Well I guess I gotta give the machine shop more money. :mad: I just ordered a new roller cam from Summit. I ordered one from Hughes but they only had two roller cam profiles in stock, and they both required high stall TC's.
So I got a roller Comp Cam from Summit.( COMP Cams 20-810-9) stupid expensive. $505 just for a cam! Why are rollers more than double a similar flat tappet!? Thanks for the extra bit of info. So I guess just ask the shop to drill them out to 0.660?
