Street Legal Performer Cylinder Head
Big Block Chevy 454 Oval Port
290cc Intake Ports
100cc Combustion Chambers
1.550" Valve Springs, .700" Max Lift
7/16" Rocker Studs
Bare Head, Sold Each
Performer 454-O cylinder heads have the same outstanding features as the Performer RPM heads but with an exhaust crossover passage for a 50-state emissions legal status (E.O. #D-215-16). Match these powerful heads with our Performer manifold, Performer-Plus cam and an Edelbrock square-bore or spread-bore carburetor for a Power Package that's capable of over 470 ft/lbs. of torque at 3500 rpm.