FREE FAST USA DELIVERY $99+
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HIGHEST QUALITY & SERVICE
LOWEST PRICE GUARANTEE
- Description
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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
Installation Instructions
Installation Instructions
Installation Instructions
Warranty
All products ship from USA and typically arrive at the following speeds:
- USA in 1-3 Business Days
- Canada in 1-3 Business Days
- Europe in 2-5 Business Days
- Australia in 3-7 Business Days
- Asia in 3-7 Business Days
- Rest of the World in 5-10 Business Days
*** The following estimated shipping speeds, do not include processing time or back orders. Please expect above shipping speeds on in stock items only.
* We ship internationally, contact us for quotes or simply check out online!
* Free shipping in USA on absolutely everything at Tune2mod with ground shipping. Total must be $99 or more. Valid only within lower 48 states. We may choose faster shipping service depending on product being sold at our cost.
* We have the right to modify or cancel this promotion.
* Special orders, cores or overweight items may result in additional charge.
* Please inquire with us regarding faster shipping methods or overnight delivery.
* We ship from one of our 3 warehouses: Pennsylvania, Nevada or Texas USA
* Fast and reliable shipping is offered through our main worldwide known carriers: FedEx, UPS, DHL and USPS. Simply check out and cheapest/fastest shipping will be automatically provided to you. Shipping is available to most countries in the world.
Duties and Taxes
- Tune2mod must comply with all rules and regulations on exporting and importing laws. We are aware that there may be some duties applied, which is why we will do our best to minimize these, by offering best shipping options that are suitable for your country. It is up to a buyer to determine what these fees are. Tune2mod is not responsible for these fees. Duties and customs fee must be paid directly to courier as we do not impose them. All items ship from USA.
*Our shipping preference*
- Although these are our preferable shipping options, we may change these anytime.
- Shipping to USA: UPS/ FedEx courier
- Shipping to Canada: Canada Post/USPS or DHL courier
- Shipping worldwide: DHL courier or USPS
** Please contact us for more details, questions on specific products and/ or international orders.
Returns will be accepted in first 30 days. Items must be new with original packaging, unused, re-sellable and with all the pieces. No refunds after 30 days. There will be no exchange or returns allowed on any electronics, coilovers, engine internals, turbochargers, superchargers or turbo kits. There are absolutely no returns on items marked "Special Order" or "Pre-Order". No cancellation allowed once the product is shipped. Receipt must be provided with every order returned. Tune2Mod must approve all items processed, with (RMA) number on the box. Restocking fee of 10% of item cost will be charged on all special and non regular stock products (marked as "Not in stock, Pre-Order Now"). A fee to redirect an order will or may apply, which will be calculated depending on size and weight. Shipping and handling fee will not be refunded. Client must pay for shipping. Please expect 2 business days to process a return and 3-5 business days to issue a refund.
For more information, questions or concerns, email us at sales@tune2mod.com
