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Description
Edelbrock Performer D-Port Complete 87ccCylinder Head Specifications: Combustion chamber volume: (A) 65cc 72cc 87cc; Intake runner volume: 204cc; Exhaust runner volume: 145cc; Intake valve diameter: 2. 11"; Valve stem diameter: 11 32"; Exhaust valve diameter: 1. 66"; Valve guides: Manganese bronze; Deck thickness: 5 8"; Valve spring diameter: 1. 46"; 120lbs. @ 1. 800" Inst. Height; Valve spring maximum lift: . 550"; 1. 150" Coil Bind; Rocker stud: 7 16"; Guideplate: Hardended steel; Pushrod
Cylinder Head Specifications: Combustion chamber volume: (A) 65cc / 72cc / 87cc; Intake runner volume: 204cc; Exhaust runner volume: 145cc; Intake valve diameter: 2.11"; Valve stem diameter: 11/32"; Exhaust valve diameter: 1.66"; Valve guides: Manganese bronze; Deck thickness: 5/8"; Valve spring diameter: 1.46"; 120lbs. @ 1.800" Inst. Height; Valve spring maximum lift: .550"; 1.150" Coil Bind; Rocker stud: 7/16"; Guideplate: Hardended steel; Pushrod diameter: 5/16"; Valve angle: 14°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3/4 reach, gasket seat.. Performer Pontiac heads utilize a D-Port exhaust port configuration for use with standard D-port exhaust systems. They are designed for 1962-79 389, 400, 421, 455 cid V8 Pontiac engines with a 4.060in. or larger bore. They feature optimized oil return passages for increased oil flow. These heads are available in three heart shaped combustion chamber sizes, including 65cc, 72cc and 87cc. The 65cc combustion chambers are as-cast while the 72cc and 87cc chambers are fully CNCd to provide a 9.5:1 compression ratios when used with flat-top pistons. The spark plug has been relocated closer to the exhaust valve for improved performance. These heads are cast with extra thick port walls and a compact port size, making them ideal for CNC and hand parting. Complete heads include guide plats, rocker studs and high quality valvetrain for direct bolt-on application. Head crossover machined for 50-state emissions legal performance. INSTALLATION NOTE: 350 c.i.d. engines may require notching the block for valve clearance. Three head bolt bosses are raised higher than the standard D-port heights and will require head bolt kit #8561 to install these heads. Deck thickness: 5/8", rocker stud diameter: 7/16", pushrod diameter: 5/16" (width of slot in guide plate).Installation Instructions
Installation Instructions
Installation Instructions
Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.5 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 3
Great Idea but they will let you down eventually
I have used these for years during the winter. The price has nearly tripled but the longevity is the same. I normally purchase three with one being a spare. Within a few weeks they start going. I switch batteries etc but normally that does not help. Its a great idea and my dogs love them but they dont hold up to 10 minutes of play each nite. We do not throw them either, I roll them or kick them as my dogs are older
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Reviewed in the United States on November 12, 2025
★★★★★ 5
Great product
Very good. Hours of fun with the dog.
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Reviewed in the United States on March 3, 2026
★★★★★ 2
Expensive ball- stops working in a week
Came without any protection inside for batteries. Stopped working after a week. Expensive ball to break in a week
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Reviewed in the United States on December 7, 2025
★★★★★ 5
Great ball for dogs
Murphy’s favorite ball!!!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Great fun for our dogs!
Style: Original
My dogs can’t get enough of this very noisy ball. We have one outside and one in their playroom. It is very noisy. It is very hard. So, I’d say a room with fine furniture is not the place for it. Ours bang it around pretty good.
Our boxer did split one, biting it. But, she’s a serious chewer! Our other dog carries it around sometimes but hasn’t been able to damage it yet. So, I’d say for most chewers it’s going to last a long time.
It’s a great toy but in most households I’d say basement or outside. Again, it’s hard and did ding a few baseboards.
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Reviewed in the United States on March 27, 2026
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