Hello my engine gurus. A couple years ago I rebuilt my 68 340 short block. When I did I put .030 flat top pistons that sit at true zero deck with 2 valve reliefs, -5cc if I remember correctly. It has been on the shelf for a bit all oiled and wrapped up. I did this thinking I was just going to get the factory X heads redone with the large chamber. I hope to get my 67 Cuda back from paint this summer so the engine project is back on. I have been looking into aluminum heads instead of the X heads. There seem to be some decent priced Aluminum heads between Speed master and Edelbrock, could even do Trick flow. Your brand experience?
My question is, with my piston at zero deck, what CC chamber would get me around 10:1 + or - a little? I see chamber of 63cc and 65cc on the aluminum heads. It would be a .040 gasket and I have read some about how quench works. I don't want to have compression too high to run pump gas. Its a street car that I will take on trips and the strip just for fun sometimes. Want a little extra street torque more than top end HP. 727,3:55, Edel RPM intake, roller hyd cam, I have 68 340 manifolds or could go headers.
Thanks in advance.
