{"product_id":"pontia-326-455-engines-cylinder-heads-ede60589","title":"Engine Cylinder Head \u003cbr\u003e Pontia 326-455£¨5.3-7.4L) Engines","description":"\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe Edelbrock 60589 Performer RPM cylinder head is designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. The Edelbrock 60589 Performer RPM head with the 72cc combustion chamber are for higher compression engines. Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifics and Features:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cli\u003eCNC Ported: Yes\u003c\/li\u003e\n\u003cli\u003eConstruction Type: Bare\u003c\/li\u003e\n\u003cli\u003eDeck Thickness: 0.625 IN\u003c\/li\u003e\n\u003cli\u003eEGR Port: No\u003c\/li\u003e\n\u003cli\u003eExhaust Port Location: Standard\u003c\/li\u003e\n\u003cli\u003eExhaust Runner Volume: 175 CCM\u003c\/li\u003e\n\u003cli\u003eFamily: Performer RPM\u003c\/li\u003e\n\u003cli\u003eGuide Material: Manganese Bronze\u003c\/li\u003e\n\u003cli\u003eGuide Plate Material: Hardened Steel\u003c\/li\u003e\n\u003cli\u003eHorsepower: 450-550 HJ\u003c\/li\u003e\n\u003cli\u003eQuantity: Sold Individually\u003c\/li\u003e\n\u003cli\u003eRetainer Included: No\u003c\/li\u003e\n\u003cli\u003eSeat Angle: Exhaust 45 deg\/Intake 45 DD\u003c\/li\u003e\n\u003cli\u003eSeat Material: Ductile Iron\u003c\/li\u003e\n\u003cli\u003eSeries: Performer RPM\u003c\/li\u003e\n\u003cli\u003eValve Angle: 14 DD\u003c\/li\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Includes:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cli\u003eEdelbrock Pontiac Cylinder Head\u003c\/li\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCompatible With:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cli\u003e1975 Buick LeSabre\u003c\/li\u003e\n\u003cli\u003e1975 Oldsmobile 98 Delta 88 Custom Cruiser\u003c\/li\u003e\n\u003cli\u003e1965-1978 Pontiac Bonneville Catalina\u003c\/li\u003e\n\u003cli\u003e1967-1979 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1971-1978 Pontiac Grand Safari\u003c\/li\u003e\n\u003cli\u003e1971-1975 Pontiac Grandville\u003c\/li\u003e\n\u003cli\u003e1968-1977 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1965-1973 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e1965-1966 Pontiac Star Chief\u003c\/li\u003e\n\u003cli\u003e1975-1977 Pontiac Grand LeMans\u003c\/li\u003e\n\u003cli\u003e1965-1977 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1966-1974,1976 Pontiac Parisienne Laurentian\u003c\/li\u003e\n\u003cli\u003e1973-1975 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e1967-1970 Pontiac Executive\u003c\/li\u003e\n\u003cli\u003e1968-1970 Pontiac Tempest\u003c\/li\u003e\n\u003cli\u003e1970-1971 Pontiac Acadian\u003c\/li\u003e\n\u003cli\u003e1966-1970 Pontiac Strato-Chief\u003c\/li\u003e\u003cbr\u003e\u003cbr\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":52773590827371,"sku":"EDE-60589","price":914.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1961\/1987\/files\/EDE-60589-1.jpg?v=1768812484","url":"https:\/\/caautoparts.com\/products\/pontia-326-455-engines-cylinder-heads-ede60589","provider":"CA Auto Parts","version":"1.0","type":"link"}