Wilkes Performance 273cc 11deg LS3 6 bolt Casting
$2,008.00Price
WP 11deg LS3 Castings with Bronze Guides
6 bolt design
273cc Intake runner, 108cc Exhaust
2.165/1.59 Stainless Steel Valves
72cc Chamber
3/4 Deck
sold in pairs
General Recommendations
Wilkes Performance assumes no responsibility for damage if the end user builds an engine without properly verifying he has enough piston to valve clearance (depth and radial clearance both checked). It is recommended for a minimum depth of .080″ on the intake valve and .100″ on the exhaust with a radial clearance of .030″ minimum around the perimeter of each valve. It is the customers responsibility to verify proper piston to valve clearance.
CNC Porting
On occasion a 100% CNC ported head might have casting areas left “as cast”.This is due to core shift and this in no way affects performance.