{"product_id":"proflow-cylinder-heads-supermax-245-bb-chrysler-440-aluminium-bare-78-chamber-245cc-intake-runner-pair","title":"Proflow Cylinder Heads, SuperMax 245, BB Chrysler 440 Aluminium, Bare 78 Chamber, 245cc Intake Runner, Pair","description":"\u003cp\u003eProflow Cylinder Heads, AirMax 200, BB Chrysler Aluminium, Bare Proflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of engine, for SB \u0026amp; BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302, 351 Cleveland 2V \u0026amp; 3V \u0026amp; BB FE, and Chrysler SB \u0026amp; BB. They have phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, high performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. Perfect for your Mild or High performance Hot Rod.    Combustion Chamber Volume (cc): 78cc          Intake Runner Volume (cc): 245cc         Exhaust Runner Volume (cc): 75cc           Cylinder Head Style: Bare           Cylinder Head Material: A356.2           Intake Valve Diameter (in.): 2.19\"           Intake Port Location: Standard           Exhaust Port Location: Standard           Exhaust Valve Diameter (in.): 1.76\"         Maximum Valve Lift (in.): 0.65\"           Outside Diameter of Outer Spring (in.): 1.46\"         Valve Cover Mounting Style: Perimeter Bolt         Accessory Bolt Holes Drilled: Yes           Intake Valve Angle: 15 degree           Exhaust Valve Angle: 15 degree           Valve Guide Material: Manganese Bronze         Valve Seat Machine Style: 5 Angle           Valve Seat Material: Podwer Metal          Oiling Style: Through Head            Notes:               Longer than stock pushrods may be required. Minimum bore size is 4.320 in.\u003c\/p\u003e","brand":"Proflow","offers":[{"title":"Default Title","offer_id":43162314965037,"sku":"PFEAHCY24578-BARE","price":2100.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/2987\/5757\/files\/PFEAHCY24578-BARE.jpg?v=1733639222","url":"https:\/\/propartswarehouse.com.au\/products\/proflow-cylinder-heads-supermax-245-bb-chrysler-440-aluminium-bare-78-chamber-245cc-intake-runner-pair","provider":"Pro Parts Warehouse","version":"1.0","type":"link"}