024020C-2 BMP MOTOWN CHEVY 255/64CC CNC PORTED 23 DEGREE ALUMINUM HEADS COMPLETE

Regular price $ 2,887.64

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

024020C-2 MOTOWN 23° 255cc CNC ported heads. 64cc chambers, angle plug, 1.437" dual springs, hydraulic roller or hydraulic flat tappet, SPRING SPECS 125 LBS @ 1.810", 340 LBS @ 1.210", COIL BIND @ 1.160", MAX LIFT .600

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 255cc 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: 255cc, 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: 1.437": 125 lbs. @ 1.810", 340 lbs. @ 1.210", coil bind @ 1.160", max lift @ .600"  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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