265 has 3.91 inch bore & 3.68 stroke, 1.96 intake valves, 1.60 exhaust valves

245 has 3.76 inch bore & 3.68 stroke, 1.845 intake valves, 1.50 exhaust valves

215 has 3.52 inch bore X 3.68 stroke

Oops! almost forgot, the head in the picture is a 245 head taken out to the max with Chevy 11/32 stem 2.00 (2.02 milled down) nailhead race valves & 1.60 Chevy exhaust

Last edited by FastOne; 07/01/03 02:42 AM.