Edelbrock 61579 CYL HEAD PERF CNC D-PORT FOR PONTIAC ENGINES 87CC CHAMBERS SINGLE COMPLETE

Edelbrock part #61579 Performer Pontiac D-Port Cylinder Heads designed for 1962-79 389, 400, 421, 428 and 455 c.i.d. V8 Pontiac engines with a 4.060" or larger bore. They feature optimized oil return passages for increased oil flow.

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The Edelbrock #61579 Performer Pontiac Cylinder Head utilize a D-Port exhaust port configuration for use with standard D-port exhaust systems. They are designed for 1962-79 389, 400, 421, 428 and 455 c.i.d. V8 Pontiac engines with a 4.060" or larger bore. They feature optimized oil return passages for increased oil flow. The spark plug has been relocated closer to the exhaust valve for improved performance. This head is cast with extra thick port walls and a compact port size, making them ideal for CNC and hand porting. Complete cylinder head includes guide plates, rocker studs and high quality valvetrain for direct bolt-on application. Heat crossover is machined for 50-state emissions legal performance.

• Manufactured w/Optimized Oil Return Passages
• Dual-Plane Low-Rise Intake w/180 deg. Firing Order
• Will Accept Factory Pushrod Guide Plates
• Rocker Studs And Accessory Bosses
• 50-State Emissions Legal Performance
• Optimum Spark Plug Location Reduces Heat Loss
• 5/8 in. Thick Deck Surface
• Machined And Assembled In The U.S.A.

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Application Summary:

Year	Make/Model
Pontiac:-:326	(5.3L)/350 (5.7L)/389 (6.4L)/400 (6.6L)/421 (6.9L)/428 (7.0L)/455 (7.4)

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