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Edelbrock 61599 Performer Series D-Port Cylinder Head

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Cylinder Head

Performer Series D-Port Cylinder Head

Performer Series D-Port Cylinder Head; Complete; 400-500hp; Chamber Vol. 87cc; Designed For 1962-79 fits Pontiac 389/400/421/428/455 V8 w/4.060in. Or Larger Bore; Single;

  • Cylinder Head Type: fits Pontiac D-Port
  • Emission: 50 State Legal
  • Finish: Cast Aluminum
  • Preparation: Bolt On (Not Required)
  • Type: Complete
  • Usage: Street/Performance
  • WARNING CA Proposition 65: Yes
  • WARNING CA Proposition 65 Message: WARNING: This product can expose you to Lead; which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit

  • Manufactured w/Optimized Oil Return Passages
  • For Improved Flow
  • 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.

The Edelbrock #61599 Performer fits 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 fits 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.

When you design and sell the best-engineered performance products in the world, you have to have a rigorous testing program. Why? Without adequate testing, there's no way to stand behind your product with confidence. That's why every product we design and sell at Edelbrock is tested and approved by Edelbrock engineers in a real world environment on state-of-the-art equipment. Our three Super Flow computerized engine dynos are capable of measuring 11 separate engine variables up to speeds of 12,000 rpm. For 2007, we added a new Super Flow SF902 engine dyno. It's fully automated and programmable to simulate various driving situations, and is equipped with WinDyn software for the very latest in testing equipment. For real-world tuning, there's our Super Flow model SF-840 eddy-current chassis dyno that can handle up to 1,000 hp at the wheels and speeds of 200 mph. When all testing is completed, the results evaluated, and the part has passed all performance criteria, then, and only then, is the product deemed ready for production. These precise testing procedures are applied to the entire Edelbrock line for performance that's guaranteed. Edelbrock test vehicles are driven by Edelbrock engineers and employees to get a "real world" feeling for the performance improvements. Our products are also tested and used by professional race car teams and drivers. Working with these talented individuals is just another extension of our research and development process so when we say "proven performance" we really mean it! Top racing teams in all forms of motorsports rely on Edelbrock to produce parts that they can count on to win races and championships. Further underscoring our commitment to the racing community, Edelbrock is the only aftermarket intake manifold manufacturer licensed by NASCAR.