Quote:

My concern is the majority of stroker kits use dished pistons in either -17cc or -26.7 cc. Yet, Eagle uses a flat top at -8cc. Using Eagle's compression ratio calculator, I'm getting a CR of 11:1 with a 84cc head, zero deck and .045 quench, higher than I want.



Then skip the eagle kit.

What is the bore of the block ? to get 512 I'm having to go out to a 4.380 bore. unless the block needs it I would only bore it out as far as it needs to go and no further.

Crunching numbers the 17cc dish piston is your best choice , it will give you about 10.3 ...