{"product_id":"proflow-pfeahbb315121-c-chev-bb-315cc-aluminium-cylinder-heads-complete-pair","title":"Proflow PFEAHBB315121-C Chev BB 315cc Aluminium Cylinder Heads Complete Pair","description":"- Cylinder Head Material A356.0 Aluminium\u003cbr\u003e - Intake Valve Diameter (in) 2.25 in.\u003cbr\u003e - Exhaust Valve Diameter (in) 1.88 in. \u003cbr\u003e\u003cbr\u003e\u003cp\u003eApplication: Chev Big Block Mark IV 396-454 C.I.D. \u0026amp; Gen V 454 C.I.D.\u003c\/p\u003e  \u003cp\u003eCylinder Head Style: Assembled\u003cbr\u003e Cylinder Head Material: Aluminum\u003cbr\u003e Cylinder Head Finish: Natural\u003cbr\u003e Combustion Chamber Volume (cc): 121cc\u003cbr\u003e Intake Runner Volume (cc): 315cc\u003cbr\u003e Intake Valves Included: Yes\u003cbr\u003e Intake Valve Diameter (in): 2.250 in.\u003cbr\u003e Exhaust Valves Included: Yes\u003cbr\u003e Exhaust Valve Diameter (in): 1.880 in.\u003cbr\u003e Number of Springs Per Valve: Dual\u003cbr\u003e Valve springs O.D.(in): 1.55 in.\u003cbr\u003e Installed Pressure: 225 lbs\u003cbr\u003e Maximum valve lift @ 710 lbs: 0.800 in.\u003cbr\u003e Coil Bind Height (in): 0.900 in.\u003cbr\u003e Retainers Included: Yes\u003cbr\u003e Locks Included: Yes\u003cbr\u003e Valve Stem Seals Included: Yes\u003cbr\u003e Rocker Arm Studs Included: Yes\u003cbr\u003e Valve Cover Mounting Style: Perimeter bolt\u003cbr\u003e Quantity: Sold as a pair.\u003cbr\u003e Note: Screw in studs. No guide plates.\u003c\/p\u003e","brand":"Proflow","offers":[{"title":"Default Title","offer_id":44877135053111,"sku":"PFEAHBB315121-C","price":3768.6,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/123142.jpg?v=1780350370","url":"https:\/\/enginemaster.com.au\/products\/proflow-pfeahbb315121-c-chev-bb-315cc-aluminium-cylinder-heads-complete-pair","provider":"Engine Master","version":"1.0","type":"link"}