{"product_id":"dart-127422-shp-aluminum-small-block-chevy-cylinder-heads","title":"Dart SHP Aluminum Small Block Chevy Cylinder Heads","description":"\u003cp\u003eStreet performance, restricted oval track, and marine performance upgrade. Mid-range to 6,500 RPM. Best for 383-434 cubic inch engines.\u003c\/p\u003e\n\u003cp\u003eDart’s SHP (Special High Performance) 23° 200cc cylinder heads provide an affordable option for larger displacement street performance engines. The SHP is designed to work with most off the shelf components.\u003c\/p\u003e\n\u003cp\u003eThe SHP head’s precision cast ports are designed to offer excellent flow and power without the need for CNC porting. Optimized chambers increase combustion efficiency, and multi-angle intake seats and radiused exhaust seats dramatically increase performance. Manganese Bronze valve guides increase the life of the head.\u003c\/p\u003e\n\u003cp\u003eHeads are sold individually.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: RMR Cast Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003eValve Angle: 23° (stock)\u003c\/li\u003e\n\u003cli\u003eIntake Port Volume: 200cc\u003c\/li\u003e\n\u003cli\u003eIntake Valve: 2.020”\u003c\/li\u003e\n\u003cli\u003eExhaust Valve: 1.600”\u003c\/li\u003e\n\u003cli\u003eChamber Volume: 64 or 72cc\u003c\/li\u003e\n\u003cli\u003ePlug Type: Straight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e72cc Combustion Chambers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dart","offers":[{"title":"Default Title","offer_id":39899808137368,"sku":"0F9PC","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0564\/0867\/0360\/products\/SHP-23-200cc_port.png?v=1620256229","url":"https:\/\/frsport.com\/products\/dart-127422-shp-aluminum-small-block-chevy-cylinder-heads","provider":"FR SPORT","version":"1.0","type":"link"}