1. CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

13° valve angle, a relocated spark plug and down nozzle location, and an 80/135 valve spacing.

The BP AK head is offered in two intake port sizes, 270 cc and 285 cc. Special components

required for these heads are injectors, sheet metal valve covers, and a shaft rocker system.

Package Heads:

PS CB: VALVE BOWLS BLENDED • PS MI: O-RINGED (1.435 X 2.100 • PS Valve Job: COMPETITION VALVE JOB

• Intake Valves: 2.180 X 5.950 X 5/16 • Exhaust Valves: 1.600 X 5.950 X 5/16

• Valve Springs: 1.550 ROLLER VALVE SPRING - GA 1000, 240 lb CLOSED, 550 lb OPEN, 1.950 INSTALLED HEIGHT,

.700 MAXIMUM LIFT

• Retainers: 1.550 10° TITANIUM - MA 2398BR • Valve Locks: 5/16 - CC 610 • Valve Seals: 5/16 - CC 500

FACTS AND RELATED COMPONENTS:

• Torque Heads: 70 ft-lb • Torque Rocker Studs: 40-45 ft-lb • Intake Gaskets: O-RINGED

• Head Gaskets: 350 - FEL-PRO 1003, COMETIC C5399 400 - FEL-PRO 1004, COMETIC C5403

• Exhaust Gaskets: SPREAD PORT - BRODIX MG 52464 (TRIM TO FIT), COMETIC C5424

• Head Studs: AVAILABLE EXCLUSIVELY FROM BRODIX - BRODIX BR HSAP (ALUMINUM BLOCK)

• Accessory Bolt Holes Are Drilled • Spark Plug Starting Points: NGK R5671A-10 FOR ALCOHOL

NGK R5671A-9 FOR RACING GAS • Spring Pockets: 1.550 OUT OF THE BOX, MAY BE CUT TO 1.625 -

NO LARGER OR DEEPER • Valve Angle: 13° • Angle Milling: NOT AVAILABLE • Flat Milling: .0060 in PER cc

• Angle Machining: NOT AVAILABLE • Pushrods: SPECIAL LENGTH

• Rocker Arms: SHAFT SYSTEM - T&D 2341, JESEL KPS 20592 • Lifters: .180 OFFSET

• Pistons: SPECIAL 13° • Intake Face Angle: 5°

Cylinder Head Specifications:

INTAKE PORT CHAMBER VOLUME VALVE SIZES INTAKE/EXHAUST EXHAUST PATTERN VALVE CENTERLINE INTAKE MANIFOLD

BP AK 270            270 cc            52 cc            2.180/1.600           Spread Port        80/135            Fuel Injection

BP AK 285            285 cc            52 cc            2.180/1.600           Spread Port        80/135            Fuel Injection

                 CUBIC INCH     COMPRESSION    CAMSHAFT           RPM                      APPLICATION

BP AK 270    380 - 410           13.5 Minimum            Roller             4500 - 8500            Oval Track / Drag Race

BP AK 285    380 - 410           13.5 Minimum            Roller             4500 - 8500            Oval Track / Drag Race

Flow Chart CFM @ 28" H20

                          VALVE SIZE         0.200         0.300         0.400         0.500        0.600          0.650         0.700

BP AK 270        2.180 INTAKE          154            236            298            333           361            373            376

(CNC Ported)   1.600 EXHAUST       110            161            213            238           248            256             258

BP AK 28         2.180 INTAKE          157            239             298            339           369            378            382

(CNC Ported)   1.600 EXHAUST       110            161            213             238           248            256            258

• BP AK 270 Bare Spread Port Exhaust 1318000 MAKE OFFER PER 2

• BP AK 285 Bare Spread Port Exhaust 1318002 MAKE OFFER PER 2

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• Free shipping in the lower 48 states!

• We handle the complete BRODIX line.

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• WE CAN BEAT ANY PRICE ON BRODIX.

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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