Edelbrock Performer RPM #60947 Small-Block Chevy Cylinder Head for NHRA Stock & Super Stock Applications

The Edelbrock #60947 Performer RPM Bare NHRA Stock/Super Stock cylinder head is designed for 1955-86 Small-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 USA, the 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 shapes, Edelbrock 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 durability, and manganese-bronze valve guides with ductile iron valve seats. These are features that some other companies don't include! The Edelbrock #60947 Performer RPM Bare NHRA Stock/Super Stock cylinder heads are designed for 1955-86 Small-Block Chevy applications. These cylinder heads deliver great throttle response and power from 1500 to 6500 rpm. Chevrolet:Small-Block Gen I:302 (4.9L)/327 (5.4L)/350 (5.7L)/400 (6.6L)

• Thicker Deck Surfaces Than Other Brands

The Edelbrock Performer RPM #60947 is a high-performance, NHRA-legal cylinder head designed specifically for 1955-1986 Small-Block Chevy engines, including 302, 327, 350, and 400 cubic inch displacements. Crafted with precision at Edelbrock's US manufacturing facility, this head features a cast and heat-treated construction that ensures durability and consistent performance. Using advanced computer-aided design, Edelbrock engineers have optimized port shapes and combustion chamber designs to maximize airflow and combustion efficiency, resulting in improved throttle response and increased horsepower across the engine's RPM range. This head is ideal for racers and performance enthusiasts seeking reliable, top-tier components for stock and super stock classes.

Features:

• Thicker deck surfaces for added strength and durability

• Threaded inserts in rocker stud and exhaust bolt holes for enhanced longevity

• Manganese-bronze valve guides with ductile iron valve seats for superior wear resistance

• Designed for use in 1955-86 Small-Block Chevy applications including 302, 327, 350, and 400 cubic inch engines

• Optimized port and combustion chamber design for improved airflow and power output