VFactor I Series LS3 11 Degree 6 bolt Casting

$2,300.00

VFactor Import LS3 11deg Castings

Full CNC porting

273cc Intake runner, 108cc Exhaust

2.165/1.59 Stainless Steel Valves

Bronze Guides

68cc Chamber

6 Bolt Design

3/4 Deck

sold in pairs

VALVE OPTIONS

SPRING OPTIONS

Shaft Rocker System

Quantity

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.

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.
Flow Numbers
4.155" Fixture

.200 162/116
.300 237/147
.400 292/193
.500 337/225
.600 363/254
.700 382/264
.800 387/271

General Recommendations