{"product_id":"pontiac-455-performer-rpm-cnc-cyl-head-assm","title":"Engine Cylinder Head","description":"The Edelbrock #61525 Performer RPM CNC Cylinder Head has the same specifications as our popular Performer RPM cylinder head for 1962-79 389-455 c.i.d. Pontiac engines, but feature a CNC machined combustion chamber. The CNC machined chamber results in a consistent and precise chamber for improved flow performance. Performer RPM CNC cylinder head is available in two chamber sizes. The 87cc chamber version is ideal for 9.5:1 engines and will deliver excellent street performance on low octane fuel. The Edelbrock #61525 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":48212209828088,"sku":"BDVJ_61525","price":1560.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1538\/7640\/files\/EDE61525.jpg?v=1775685487","url":"https:\/\/nadersautosupply.com\/products\/pontiac-455-performer-rpm-cnc-cyl-head-assm","provider":"Nader's Auto Supply","version":"1.0","type":"link"}