Thread: 402 heads

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New to the forum and out of hotrod circulation for 15 years. I changed hobbies 15 years ago and now decided to get back in to it. I bought a 70 chevy 1/2 ton with a small block. I sold the sb and just picked up a 402 for it. Herei s my plan and question. I am going to go 30 over with 9.5 to 1. I will be using a .560/.572 lift cam, I will use stainless valves 2.06/1.72, roller tip rockers,performer rpm intake and 750 carb. All this infront of a 700r4 and 3.73 rearend. I want to know if I should use the stock heads and should I still use the exhaust valve rotators under the springs, or should I spend the money for better heads aluminum or cast. It will be a daily driver.

Thanks, Wes