024020C BMP MOTOWN SBC 255/64CC BARE CNC PORTED ALUMINUM HEADS CUT FOR 2.1/1.6

Regular price $ 2,374.08

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

024020C BMP MOTOWN SBC 255/64CC BARE CNC PORTED ALUMINUM HEADS CUT FOR 2.1/1.6

TECHNICAL SPECS

Casting ID Number: WOR-077A Material: 355-T6 alloy high density aluminum Valve Seats: Intake (hardened), exhaust (hardened) Valve Guides: Manganese bronze Spring Seats: Machined for 1.560" Valves: Manley stainless steel valves in assemblies Valve Diameter: 2.080" intake, 1.600" exhaust (11/32" stem) as cast, 2.100" intake, 1.600" exhaust (11/32" stem) CNC ported Guide Plates: Stock (Special guide plates required for 235cc head, part #830456) Rocker Arm Studs: Screw-in style Rocker Arms: 1.5 offset ratio (use of 1.6 ratio may require elongation of pushrod holes) Intake Runner: 235cc, standard port location Exhaust Ports: 70cc standard location Combustion Chamber: 64cc, angled plug orientation Spark Plug: 14mm .750" reach gasket style Valve Job: Multi-angle intake and radiused exhaust Valve Cover Rail: Raised w/ perimeter and center bolt pattern Valve Angle: Stock 23° Accessory Bolt Holes:  Head Flow  CNC Ported Head @ .800 Lift 306 intake, 220 exhaust (Super Flow 1050) 329 intake, 238 exhaust (Super Flow 600) All heads flowed with a standard .750" intake plate, without exhaust tube, and 28" of water.

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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Warning: May cause cancer and reproductive harm.