Edelbrock 60479 - Edelbrock BB-Chevy Performer Aluminum Cylinder Heads
Edelbrock #350-60479BB-Chevy Performer Aluminum Cylinder Head |
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Edelbrock 60479 - Edelbrock BB-Chevy Performer Aluminum Cylinder Heads Details
BB-Chevy Performer 454 Aluminum Cylinder Heads
Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access.
Performer 454-O cylinder heads have the same outstanding features as the Performer RPM heads but with an exhaust crossover passage for a 50-state emissions legal status (E.O. #D-215-16). Match these powerful heads with our Performer manifold, Performer-Plus cam and an Edelbrock square-bore or spread-bore carburetor for a Power Package that's capable of over 470 ft/lbs. of torque at 3500 rpm.
Performer 454 Cylinder Heads Performer 454 High Compression Cylinder Head
These oval port heads will support over 540 hp with 9.5:1 compression with the right combination! Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pant performance and crisp throttle response. Semi-open chamber design maximizes efficiency with streetable compression ratios. The smaller-than-stock 11/32'' valve stems provide excellent flow and lighter valve weight.
These heads have a 100cc semi-open chamber heads and 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. They have a 9.2:1 compression with flat-top pistons, making them an outstanding high performance street head. They also have an 8.8:1 compression ratio when used on 1987-up TBI-equipped 7.4L dished piston motors. These heads produced over 450 ft/lbs. torque when combined with Edelbrock's Multi-Point EFI System!
