Edelbrock Performer RPM Pontiac 455 Cylinder Head Assembled 2.11/1.66" Valve 215 cc Intake 72 cc Chamber - 1.460 Spring - Pontiac V8 PD105K 2015-2019 GMC Sierra 3500 HD

2015-2019 GMC Sierra 3500 HD 97

550" OD works well with our 26095 valve springs in

1980-1985 Chevrolet K30

Ear cups are velcro backed and the same shape as the removeable flat ear cover inside a VESTA helmet so it is an easy swap out

Edelbrock Performer RPM Pontiac 455 Cylinder Head Assembled 2.11/1.66" Valve 215 cc Intake 72 cc Chamber - 1.460 Spring - Pontiac V8 PD105K 2015-2019 GMC Sierra 3500 HDDesigned for street high performance use, and are interchangeable with original equipment cylinder heads. These heads retain an exhaust crossover passage and are street legal replacement parts. Edelbrock, Pontiac, 72cc, RPM, Hydraulic Roller Camshaft, V8, Cylinder Heads, 61515 Deck thickness: 5 8" Rocker stud diameter: 7 16" Pushrod diameter: 5 16" (width of slot in guide plate). Since 1938, Edelbrock has been committed to making the finest high