{"product_id":"gm-performance-gm12675871-ls3-cyl-head-complete-each","title":"GM Performance GM12675871 LS3 Cyl Head Complete (each)","description":"\u003cp data-pm-slice=\"0 0 []\"\u003eChevrolet Performance LS3 Cylinder Heads\u003c\/p\u003e\u003cp\u003eFit any LS engine with Chevrolet Performance LS3 cylinder heads. Manufactured from aluminum alloy, these GM stock replacement heads are assembled with intake and exhaust valves, stem seals, retainers, springs, and locks. Great cylinder head airflow has always supplied the LS Series with exceptional performance. Retain that performance and save yourself time and worry by replacing your tired cylinder heads with Chevrolet Performance LS3 cylinder heads.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCombustion Chamber Volume (cc): 68.4\u003c\/li\u003e\n\u003cli\u003eIntake Runner Volume (cc): 260cc\u003c\/li\u003e\n\u003cli\u003eCylinder Head Style: Assembled\u003c\/li\u003e\n\u003cli\u003eCylinder Head Material: Cast aluminum\u003c\/li\u003e\n\u003cli\u003eCamshaft Style: Hydraulic roller\u003c\/li\u003e\n\u003cli\u003eIntake Port Shape: Rectangular\u003c\/li\u003e\n\u003cli\u003eIntake Valve Diameter (in.): 2.165 in.\u003c\/li\u003e\n\u003cli\u003eCNC-Machined Combustion Chamber: No\u003c\/li\u003e\n\u003cli\u003eCNC-Machined Intake Runner: No\u003c\/li\u003e\n\u003cli\u003eCNC-Machined Exhaust Runner: No\u003c\/li\u003e\n\u003cli\u003eIntake Port Location: Standard\u003c\/li\u003e\n\u003cli\u003eExhaust Port Shape: D-port\u003c\/li\u003e\n\u003cli\u003eExhaust Port Location: Standard\u003c\/li\u003e\n\u003cli\u003eSpark Plug Style: Angle\u003c\/li\u003e\n\u003cli\u003eIntake Valves Included: Yes\u003c\/li\u003e\n\u003cli\u003eExhaust Valves Included: Yes\u003c\/li\u003e\n\u003cli\u003eExhaust Valve Diameter (in.): 1.590 in.\u003c\/li\u003e\n\u003cli\u003eValve Springs Included: Yes\u003c\/li\u003e\n\u003cli\u003eMaximum Valve Lift (in.): 0.570 in.\u003c\/li\u003e\n\u003cli\u003eOutside Diameter of Outer Spring (in.): 1.290 in.\u003c\/li\u003e\n\u003cli\u003eDamper Spring Included: No\u003c\/li\u003e\n\u003cli\u003eNumber of Springs Per Valve: Single\u003c\/li\u003e\n\u003cli\u003eRetainers Included: Yes\u003c\/li\u003e\n\u003cli\u003eRetainer Material: Steel\u003c\/li\u003e\n\u003cli\u003eLocks Included: Yes\u003c\/li\u003e\n\u003cli\u003eValve Stem Seals Included: Yes\u003c\/li\u003e\n\u003cli\u003eValve Stem Seal Style: Positive stop\u003c\/li\u003e\n\u003cli\u003eRocker Arm Studs Included: No\u003c\/li\u003e\n\u003cli\u003eRocker Arms Included: No\u003c\/li\u003e\n\u003cli\u003eRocker Arm Nuts Included: No\u003c\/li\u003e\n\u003cli\u003eGuideplates Included: No\u003c\/li\u003e\n\u003cli\u003eValve Cover Mounting Style: Centerbolt\u003c\/li\u003e\n\u003cli\u003eAccessory Bolt Holes Drilled: Yes\u003c\/li\u003e\n\u003cli\u003eIntake Valve Angle: 15\u003c\/li\u003e\n\u003cli\u003eExhaust Valve Angle: 15\u003c\/li\u003e\n\u003cli\u003eValve Guides Included: Yes\u003c\/li\u003e\n\u003cli\u003eValve Guide Material: Powdered metal\u003c\/li\u003e\n\u003cli\u003eValve Seats Machined: Yes\u003c\/li\u003e\n\u003cli\u003eValve Seat Material: Steel\u003c\/li\u003e\n\u003cli\u003eCylinder Head Color: Natural\u003c\/li\u003e\n\u003cli\u003eSteam Holes Drilled: No\u003c\/li\u003e\n\u003cli\u003eOiling Style: Through pushrod\u003c\/li\u003e\n\u003cli\u003eMachined for O-Ring: No\u003c\/li\u003e\n\u003cli\u003eHeat Crossover: No\u003c\/li\u003e\n\u003cli\u003eRemanufactured: No\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eQuantity: Sold individually.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eNotes: These cylinder heads can only be used on 4 bolt LS-based engines with a 4.000 in. bore or larger.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GM Performance","offers":[{"title":"Default Title","offer_id":44882232049975,"sku":"GM12675871","price":1891.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/504629.jpg?v=1780544494","url":"https:\/\/enginemaster.com.au\/products\/gm-performance-gm12675871-ls3-cyl-head-complete-each","provider":"Engine Master","version":"1.0","type":"link"}