Edelbrock 60539 Pontiac 455 Performer RPM CNC Cylinder Head

Edelbrock designed this 60539 Performer RPM CNC Cylinder Head for 1962-79 389-455 CID V8 Pontiac engines. This aluminum head features fully CNC’d 72cc combustion chambers. The CNC machined chamber results in a consistent and precise chamber for improved flow performance and spark plug location.

Fully threaded inserts for the rocker studs and exhaust manifold bolt holes deliver strength as well as durability, and the machined valve cover rail produces an optimum gasket sealing surface.

Note: This bare cylinder head has valve guides and seats installed, but will require final sizing and a valve job to match your valves.

Edelbrock 60539 Pontiac 455 Performer RPM Performer Cylinder Head Features:

• Combustion Chamber Volume: 72cc
• Intake Runner Volume: 215cc
• Exhaust Runner Volume: 175cc
• Exhaust Port Shape: Ram Air IV
• Deck Thickness: 0.625 in.
• Deck Height: 10.250 in.
• Rocker Stud Diameter: 0.4375 in.
• Pushrod Diameter: (Suggested) 0.3125 in.
• Sold Individually

Notes: Requires Edelbrock head bolt kit 8549 as well as Ram Air IV (round port) style exhaust manifolds or headers for installation.

The Edelbrock name has been a staple of the automotive performance industry since the 1940’s. Their product line includes virtually everything under the hood, from individual components to complete engines. This makes Edelbrock one of the most recognized and trusted brands in the racing and performance world!