Description

The Edelbrock #60547 Performer RPM Bare NHRA Stock/Super Stock Rectangle Port cylinder heads are designed for Big-Block Chevy applications. These cylinder heads deliver great throttle response and power from 1500 to 6500 rpm.The Edelbrock #60547 Performer RPM Bare NHRA Stock/Super Stock Rectangle Port cylinder head is designed for Big-Block Chevy applications. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. Cast and heat treated at the Edelbrock Foundry and machined at Edelbrock’s manufacturing facility in the USAthe Edelbrock head is the best in quality and performance. All Edelbrock cylinder head is designed from scratch using the latest in computer technology by our own highly skilled engineer’s. Using highly efficient ports and state-of-the-art combustion chamber shapesEdelbrock cylinder head offers improved performance throughout the rpm range for great throttle response and top-end horsepower. Top-quality features include threaded inserts in rocker stud and exhaust bolt holes for superior strength and durabilityand manganese-bronze valve guides with ductile iron valve seats. These are features that some other companies don’t include!

Assembled:No

CNC Ported: No

Combustion Chamber Volume: 118 CCM

Construction Type: Bare

Cylinder Head Gasket Included:No

Deck Height: 9.8 Inch

Deck Thickness: 0.5625″

EGR Port: No

Exhaust Port Location: Standard

Exhaust Runner Volume: 110 CCM

Family: Performer RPM

Flange Type: Rectangle Intake

Grade Type: Performance

Guide Material: Manganese Bronze

Guide Plates Included: No

Head Casting Number:31-6055

Intake Runner Volume: 315 CCM

Material: Aluminum

Mounting Hardware Included: No

Quantity: Sold Individually

Retainer Included: No

Rocker Arm Studs/Bolts Included:No

Rocker Arms Included:No

Seat Angle: Exhaust 45 deg/Intake 45 DD

Seat Material: Ductile Iron

Series: Performer RPM

Valve Angle: 26 DD

Valve Cover Gasket Included: No

Valve Locks Included:No

Valve Seals Included: No

Valve Spring Retainers Included:No

Valve Springs Included: No

Valves Included:No