The engine in the picture is 4.010 bore with stock stroke. It has Wiseco forged pistons and Callies rods on the stock stroke crank. The only odd thing is I added piston oilers to keep the piston cooler to help with higher power on pump fuel. It also lets me run the pistons tighter for a quieter engine. The heads are CNC ported L92 units with inconel ex valves. Cam is alot like a stock Z06, smooth idle, wide overlap with a touch more ex duration than a Z06.
Kurt