{"product_id":"dart-da127422-shp-alloy-cylinder-heads-200cc-72cc-chev-sb-327-400-complete-pair-ch127422","title":"DART DA127422 SHP Alloy Cylinder Heads 200Cc\/72cc Chev SB 327-400 Complete (pair) Ch127422","description":"\u003ctable\u003e  \u003ctbody\u003e   \u003ctr\u003e    \u003ctd\u003e\n\u003cstrong\u003eDART SHP ALLOY CYLINDER HEADS 200CC\/72CC CHEV SB 327-400 COMPLETE PAIR CH127422\u003c\/strong\u003eThese Dart SHP Special High Performance cylinder heads are designed to provide an affordable option to those looking for the weight savings of aluminum heads for a performance street engine. They are manufactured from A356-T6 aluminum and are designed to work with most off-the-shelf components. These SHP cylinder heads are available with your choice of 64cc or 72cc combustion chambers and come in both 180cc and 200cc intake runner ports that are precision-cast and designed to offer excellent flow and power without the need for CNC-machined porting. They feature optimized chambers for increased combustion efficiency and multi-angle intake seats. The cylinder heads' radiused exhaust seats dramatically increase their performance and the manganese bronze valve guides increase their life. \u003cstrong\u003eSpecs:\u003c\/strong\u003e    \u003cdiv\u003eApplication: Chev Small Blcok Geni I 327-350-400 C.I.DCylinder Head Style: Assembled    \u003cdiv\u003eCylinder Head Material: Aluminum\u003c\/div\u003e     \u003cdiv\u003eCylinder Head Finish: Natural\u003c\/div\u003e     \u003cdiv\u003eCombustion Chamber Volume (cc): 72\u003c\/div\u003e     \u003cdiv\u003eCNC-Machined Combustion Chamber: No\u003c\/div\u003e     \u003cdiv\u003eIntake Runner Volume (cc): 200cc\u003c\/div\u003e     \u003cdiv\u003eExhaust Runner Volume (cc): 75cc\u003c\/div\u003e     \u003cdiv\u003eCNC-Machined Intake Runner: No\u003c\/div\u003e     \u003cdiv\u003eCNC-Machined Exhaust Runner: No\u003c\/div\u003e     \u003cdiv\u003eCombustion Chamber Style: Heart\u003c\/div\u003e     \u003cdiv\u003eIntake Port Location: Standard\u003c\/div\u003e     \u003cdiv\u003eExhaust Port Shape: Square\u003c\/div\u003e     \u003cdiv\u003eExhaust Port Location: Standard\u003c\/div\u003e     \u003cdiv\u003eSpark Plug Style: Straight\u003c\/div\u003e     \u003cdiv\u003eIntake Valves Included: Yes\u003c\/div\u003e     \u003cdiv\u003eIntake Valve Diameter (in): 2.020 in.\u003c\/div\u003e     \u003cdiv\u003eExhaust Valves Included: Yes\u003c\/div\u003e     \u003cdiv\u003eExhaust Valve Diameter (in): 1.600 in.\u003c\/div\u003e     \u003cdiv\u003eValve Springs Included: Yes\u003c\/div\u003e     \u003cdiv\u003eMaximum Valve Lift (in): 0.620 in.\u003c\/div\u003e     \u003cdiv\u003eOutside Diameter of Outer Spring (in): 1.437 in.\u003c\/div\u003e     \u003cdiv\u003eDamper Spring Included: No\u003c\/div\u003e     \u003cdiv\u003eNumber of Springs Per Valve: Dual\u003c\/div\u003e     \u003cdiv\u003eRetainers Included: Yes\u003c\/div\u003e     \u003cdiv\u003eRetainer Material: Steel\u003c\/div\u003e     \u003cdiv\u003eLocks Included: Yes\u003c\/div\u003e     \u003cdiv\u003eLock Style: 10 degree\u003c\/div\u003e     \u003cdiv\u003eValve Stem Seals Included: Yes\u003c\/div\u003e     \u003cdiv\u003eValve Stem Seal Style: Umbrella\u003c\/div\u003e     \u003cdiv\u003eRocker Arm Studs Included: Yes\u003c\/div\u003e     \u003cdiv\u003eRocker Arm Nut Thread Size: 3\/8-24 in.\u003c\/div\u003e     \u003cdiv\u003eRocker Arms Included: No\u003c\/div\u003e     \u003cdiv\u003eRocker Arm Nuts Included: No\u003c\/div\u003e     \u003cdiv\u003eGuideplates Included: Yes\u003c\/div\u003e     \u003cdiv\u003eGuideplate Pushrod Size: 5\/16 in.\u003c\/div\u003e     \u003cdiv\u003eValve Cover Mounting Style: Center and perimeter bolt\u003c\/div\u003e     \u003cdiv\u003eAccessory Bolt Holes Drilled: Yes\u003c\/div\u003e     \u003cdiv\u003eIntake Valve Angle: 23\u003c\/div\u003e     \u003cdiv\u003eExhaust Valve Angle: 23\u003c\/div\u003e     \u003cdiv\u003eValve Guides Included: Yes\u003c\/div\u003e     \u003cdiv\u003eValve Guide Material: Manganese bronze\u003c\/div\u003e     \u003cdiv\u003eValve Seats Machined: Yes\u003c\/div\u003e     \u003cdiv\u003eValve Seat Machine Style: 5-angle intake\/2-angle exhaust\u003c\/div\u003e     \u003cdiv\u003eValve Seat Material: Powdered metal\u003c\/div\u003e     \u003cdiv\u003eSteam Holes Drilled: No\u003c\/div\u003e     \u003cdiv\u003eOiling Style: Through pushrod\u003c\/div\u003e     \u003cdiv\u003eMachined for O-Ring: No\u003c\/div\u003e     \u003cdiv\u003eHeat Crossover: No\u003c\/div\u003e     \u003cdiv\u003eQuantity: Sold as a pair.\u003c\/div\u003e    \u003c\/div\u003e    \u003c\/td\u003e   \u003c\/tr\u003e  \u003c\/tbody\u003e \u003c\/table\u003e  \u003cp\u003e \u003c\/p\u003e \u003cbr\u003e\u003cbr\u003e","brand":"Dart","offers":[{"title":"Default Title","offer_id":44696951750967,"sku":"DA127422","price":1609.6,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/69387.jpg?v=1780412677","url":"https:\/\/enginemaster.com.au\/products\/dart-da127422-shp-alloy-cylinder-heads-200cc-72cc-chev-sb-327-400-complete-pair-ch127422","provider":"Engine Master","version":"1.0","type":"link"}