408

Ok. Short block is done. On to the heads. How much is a 2.055 intake valve worth on my ported SM heads. Or is a 2.08 even better?


A 2.05 is perfect in many ways. If I remember the throat was sized on the big end. And if you don’t have a flowbench to maximize the 2.08 you are going to end up with a turbulent head.