Performer Big-Block Chevy Oval Port Hydraulic Flat Tappet Cam

The Edelbrock #60499 Performer Bare High Compression Cylinder Heads are designed for BB Chevy Oval Port V8 engines. The Performer heads are perfect for street performance, daily drivers and muscle cars where more performance is needed.
In stock
SKU
60499
$1,191.50
The Edelbrock #60499 Performer Bare High Compression Cylinder Heads are designed for Big-Block Chevy Oval Port V8 applications. These Edelbrock Performer Series Cylinder heads are 50-state street legal and provide outstanding performance from Idle-5,500 RPM's. The Edelbrock Performer heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. They also feature the highest quality intake and exhaust valves and valve springs.

INSTALLATION NOTE:
• EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC FLAT TAPPET CAMSHAFT APPLICATIONS
• #60499 Intake entry and exhaust exists are not profiled.
• Match with Edelbrock head gasket sets.
• Recommended spark plugs 14mm x 3/4" reach with flat gasket seat (Champion RC12YC).
• 100cc semi-open chamber cylinder heads feature a 1-1/2° rolled over (angle milled) design that improves intake port alignment and provides a smaller combustion chamber without shrouding the valves
• 9.2:1 compression with flat-top pistons for an outstanding high performance street head
• 8.8:1 compression ratio when used on 1987-95 TBI-equipped 7.4L dished piston engines
• Performer applications include heat crossover passage for emissions related engines
• Performer 454-O are 50-state street legal
Intake Runner Volume: 290 cc
Material: Aluminum
Push Rod Diameter: (Suggested) 0.4375 in
Rocker Stud Diameter: 0.4375 in
Valve Angle: 26 deg
Valve Spring Diameter: 1.50 in
Valve Spring Maximum Lift: 0.700 in
Valve Stem Diameter: 0.3438 in
Intake Valve Diameter: 2.19 in