I just bought a set of Diamonds (well, they're on order).
4.614 final bore, 4.25 stroke, 10.187 deck, .010 in the hole with a 6.7" MGP rod. Cut for Dart 360 heads. Dome thickness .250
10.5:1 and clearanced for a .850 lift cam.
Ring stack is .043/.043/3/16, std tension. .400/.200/.100 stack
12 gas ports
Includes H13 straight pins (1.094"), with Total Seal rings
Just a tick under 1300.00 (for eight)
These are going in my 568 w/14-71 SSI blower @ up to 40 PSI. Pistons are good to about 2100HP.
They wanted me to do a .017 Dykes, but they didnt make one in the final bore size, and I don't want to bore the block out to a 572.