Edelbrock 60499 Performer High-Compression 454-O Cylinder Head- $945.50

Performer high-compression 454-0-Complete Assembly

Performer High Compression 454-O

• 100cc semi-open chamber 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-up TBI-equipped 7.4L dished piston motors
• Produced over 450 ft/lbs. torque when combined with our Multi-Point EFI System in a late model 1987-95 application

Cylinder Head Specifications

Technical Notes: Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing & a valve job to match the valves you will be using. Recommended spark plugs 14mm x 3/4" reach with flat gasket seat (Champion RC12YC). 

Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O