Edelbrock Performer Cylinder Heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. The heads also include hardened seats, bronze valve guides, and fully machined valve cover rails for a strong and consistent gasket seal. The heads offer improved power throughout the rpm range and give greater throttle response and top-end horsepower. The intake and exhaust runners feature a CNC-machine profile.

• Performer Pontiac D-Port Cylinder Head
• Chamber Size 87cc
• Complete
• Single
• Pontiac 389/400/421/428/455 V8 w/4.060 in. Or Larger Bore

Edelbrock Performance is a company with a lot of history behind it, and now ranks as one of the leaders in the automotive performance industry. Edelbrock products are developed by top-notch R&D teams with access to the most modern and up-to-date tools. After a product has been designed it goes through vigorous testing in a real world environment with state-of-the-art equipment. Products are also tested by professional race car teams and drivers! Edelbrock products are used by top racing teams who participate in all forms of motorsports and they are counted on to win races and championships!