{"product_id":"edelbrock-single-perf-rpm-429-460-75cc-head-comp","title":"Edelbrock Single Perf RPM 429\/460 75cc Head Comp","description":"Cylinder Head Specifications: Combustion chamber volume: 75cc \/ 95cc; Intake runner volume: 292cc; Exhaust runner volume: 100cc ;Intake valve diameter: 2.19\"; Exhaust valve diameter: 1.76\"; Valve stem diameter: 11\/32\"; Valve guides: Manganese bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.55\"; Valve spring maximum lift: .700\"; Rocker stud: 7\/16\"; Guideplate: Hardended steel; Pushrod diameter: 3\/8\"; Valve angle: TBD; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. *  Performer RPM 460 heads accept factory exhaust, aftermarket headers and factory valvetrain components. Requires the use of 3\/8\" diameter pushrods. Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. Deck thickness: 5\/8\", rocker stud diameter: 7\/16\", pushrod diameter: 3\/8\" (width of slot in guide plate).","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":40597413920947,"sku":"EDE60679","price":1405.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/3758\/1491\/products\/0ad136c0732614efd5fc49443440450d.jpg?v=1631979667","url":"https:\/\/hellhoundperformance.store\/products\/edelbrock-single-perf-rpm-429-460-75cc-head-comp","provider":"Hellhound Performance","version":"1.0","type":"link"}