So I started to formulate plan two in April/May of 2014. A lot happened between then and now, and the plan changed a few times. But the end result was this. Here’s what’s in the bottom end.
-Bore: 4.320”
-Stock Chevrolet 072 crank, cleaned up .010/.010
-Callies 6.385” rods, ARP wave loc bolts
-Ross “11:1” pistons, opted for the contour milling to make them as light as possible
-Total Seal gapless (bottom) rings
-Clevite bearings
-Melling M55 pump, stock pickup
-windage tray from show cars
-stock oil pan
My bastard Ross pistons. Ordered ‘standard’ 11:1’s with slightly deeper valve reliefs and here’s what I got. Tried to smooth out all the sharp edges on these domes. Better flame travel maybe? I dunno.
Some miscellaneous specs....
-pistons are .023”-.028” below the deck
-compression is 10.8:1 with a .020” steel shim (would’ve been 10.2:1 with a .040 composite)
-Ross pistons weigh 820-822 grams, no pins or locks
-Original QB rod and piston, pin, rings, bolts, and a bearing is 1903.30 grams
-Ross piston with Callies rod, pin, locks, rings, bolts, and bearing is 1918.90 grams