{"product_id":"amc-performer-rpm-cylinder-head-assm","title":"Engine Cylinder Head","description":"The Edelbrock #60119 Performer RPM cylinder head is designed as a bolt-on performance upgrade for any 1967-91 AMX, Javelin or Jeep with a 343, 360, 390 or 401 AMC V8 engine. They include adjustable rocker studs and guide plates set-up for use with small-block Ford style adjustable 1.6:1 ratio rockers. The intake flange is dual-drilled to accommodate early and late model intake bolt patterns, covering 1967-91. A Complete head includes larger than- stock valve springs to handle most high-lift cams. They feature stock location ports for compatibility with standard manifolds and headers. A direct bolt-on for 1970 and later engines with 1\/2\" head bolts, This head includes step-dowel pins for pre-1970 engines. Their dual-quench combustion chambers produce approximately 9.5:1 compression in 401 V8 engines. The 45deg intake seat angle offers improved mid- to high-lift flow over the stock 30deg angle.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":48212180697336,"sku":"BDVJ_60119","price":1312.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1538\/7640\/files\/EDE60119.jpg?v=1775684944","url":"https:\/\/nadersautosupply.com\/products\/amc-performer-rpm-cylinder-head-assm","provider":"Nader's Auto Supply","version":"1.0","type":"link"}