LS3 alloy block 416 CI.

• 4.070" Bore x 4.0" stroke.
• CP Bullet flat top pistons (with valve reliefs 12.2:1 comp)
• Compstar "H" beam con rods.
• Callies 4340 steel crankshaft.
• CNC machine block.

CNC Ported Cylinder heads, Hogan sheet metal tunnel ram set up for fuel injection but can be run with twin Holleys, custom Hyd roller camshaft 262@.050", tie bar lifters, Canton 7L race sump, Polished block, ceramic coated heads in Polished alloy, tunnel ram has been ceramic coated in polished alloy, Edelbrock 2 piece timing cover:

Power Rating: 680hp@7200rpm. 

Please be aware we do keep most of these engines in stock, however there can be upto a 10 day wait.