3.875 storke
4.040 bore
0 deck height
1.050 piston top
.039 head gasket

http://cgi.ebay.com/ws/eBayISAPI.dll...MEWA:IT&ih=020

check out this auction, they say 11.4 to 1, but I calculate 12.4 to 1

 

No piston CC listed?


David

 

Also need head cc. I'm assuming you're talking about the felpro head gaskets. Then the gasket bore is 4.125. That's another small factor.

The pistons have a 5cc dish for valve relief.

You're looking at 13:1 with stock heads.

 

Unless the block has been decked or you are using an odd piston the deck will not be zero, the piston will be down in the hole.

Rich