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Edelbrock cylinder heads offer improved performance throughout the rpm range for great throttle response and top-end horsepower. Top-quality features include threaded inserts in rocker studs and exhaust bolt holes for superior strength and durability, and maganese bronze valve guides. Cast heat treated at the edelbrock foundry and machined at Edelbrock's manufacturing facility in the USA, Edelbrock heads are consistently the best in quality and performance. Performer heads are perfect for Street performance for daily drivers, street rods and muscle cars and Performer RPM are ideal for high performance street and bracket racing. Engineered with highly efficient ports sized to match the operating range of your engine, performer heads offer street legal performance from idle to 5500 rpm. Performer RPM heads produce good throttle response & power from 1500 to 6500 RPM. These heads are available for AMC/Jeep, Buick, Chevy, Chrysler, Ford, Oldsmobile and Pontiac applications. - Complete heads include larger-than-stock valve springs to handle most high-lift cams
- CNC-machined in critical areas for outstanding street high-performance
- Ideal for high-performance street and entry-level race applications
- Heads are sold in most cases assembled in pairs - Complete with high quality springs stainless steel valves and more
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