Thread: any ideas for a 402 buildup?

Tweet

Originally posted by flanker1970
I really appreciate the replies. I have 2 1/2 inch exhaust with dynomax mufflers. Do think I should replace the 2.06 intake 1.77 exhaust valves with 2.19 and 1.88? I have heard that I may lose some bottom end. Do you think that these camshafts are suitable? I plan on getting the compression around 10 to 1. YOU GUYS ARE LIFESAVERS!!! THANKS FOR THE REPLIES.

if i tell you what i would do i am shue there will be 15 guys telling me i am nuts . but the big valves may help on hi rpm hp but they mite not work on the small bore that good. were they work good better on the big bore stuff have put them in but never see much but if you think you need them put them in i would not just use ss valves the same size and go to 11/32 if thay need guides and a good bowl job