Edelbrock 60455 Performer RPM Cylinder Head, Big Block Chevy
Chevy Big Block V8, Assembled Cylinder Head Style, Aluminum, Natural, Oval Intake Port Shape
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The Edelbrock #60455 Performer RPM O-Port cylinder heads are designed for Big-Block Chevy applications. The Edelbrock #60455 Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These cylinder heads deliver great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only.
- Out-of-the-Box Bolt-On Performance
- Designed For Street/High Performance Big Blocks
- Specially Designed Oval Ports
- Increased Flow And Velocity
- Highly Efficient Semi-Open Style Chamber
- High Velocity Short Intake Ports
- EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC ROLLER CAMSHAFT APPLICATIONS
- Match with Edelbrock head gasket sets.
- Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
- These oval port heads will support over 540 hp with 9.5:1 compression when used as part of the Total Power Package®
- Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pants performance and crisp throttle response
- Semi-open chamber design maximizes efficiency with streetable compression ratios
- Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight
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Q & A
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Illustration showing the various styles of engine heads you may encounter on the Small Block Chevy engine.
Engine Cylinder Numbers
Tim M. has tried to stay true to the vintage route, but sometimes, exceptions must be made. For example, the original oiling system's paper element and canister are functional, but an upgraded system will be more reliable.