CNC Ported AFR Cathedral Port, 6-Bolt LS Cylinder Heads - Assembled Little M2 Sportsman Retains all factory bolt hole

Retains all factory bolt hole locations

The addititional parts are not included

The mechanical cam enables higher rpms and higher valve lift for more air flow

rear cap uses standard one piece seal

200" and 10

CNC Ported AFR Cathedral Port, 6-Bolt LS Cylinder Heads - Assembled Little M2 Sportsman Retains all factory bolt holeThese AFR cathedral port heads bring a lot to the party with their 6 bolt design. We buy these heads as porter castings and machine them to perfection on our CNCs. The shapes we impart to the ports and combustion chambers reflect our years of experience on our own engine builds. We know what makes power and also survives the beating of competition. It's not chasing peak air flow at max lift by excessively cutting away the metal around the valve