BRODIX SB CHEVY BARE SPREAD PORT EXHAUST AK SERIES CYLINDER HEADS/13 1318001

Regular price $ 3,330.69

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

The AK series is the latest in sprint car technology. This head offers new features such as: a

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 INT./EXH. EXH. PATTERN VALVE CENTERLINE INT. 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 L Bare Spread Port Exhaust 1318001 MAKE OFFER PER 2

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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