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Brodix 1318003
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Brodix BP AK 285 Series Cylinder Heads Lightened


Free Shipping Ships directly from the manufacturer on 09/24/19
Save $20 Off $250, $50 Off $500, $100 Off $1,500, $150 Off $2,500. Promo Code: SAVEMORE exclusions apply

Brodix BP AK 285 Series Cylinder Heads Lightened $3,267.26
Out of stock
BP AK 285 Series Cylinder Heads
  • Lightened
  • CNC Ported
  • 285cc Intake Ports
  • 52cc Combustion Chambers
  • 2.180'' Intake / 1.600'' Exhaust Valve Sizes
  • Angle Plug
  • Bare, 2/pkg.
  • Brodix 1318003 Details

    BP AK 285 Series Cylinder Heads

  • 285cc Intake Ports
  • 52cc Combustion Chambers
  • 100% CNC Ported
  • Lightened = Machined to reduce overall weight of this cylinder head.

    This head is sold as an unassembled bare casting. It is finished machined and includes valve guides and valve seats installed. This head does NOT include studs, valves, springs retainers or locks.

    Cylinder Head Specifications
  • Intake Port Volume: 285cc
  • Combustion Chamber Volume: 52cc
  • Valve Sizes: 2.180'' Intake / 1.600'' Exhaust ( 5/16'' Stem Diameter )
  • Spark Plug Configuration: Angled

    Facts and Related Components
  • Torque Heads: 70 ft-lb.
  • Torque Rocker Studs: 40-45 ft-lb.
  • Intake Gasket: O-Ringed
  • Head Gasket: Fel-Pro p/n 375-1003 (350ci) / 375-1004 (400ci) or Cometic p/n 245-C5399 (350ci) / 245-C5403 (400ci)
  • Exhaust Gasket: Brodix p/n 158-MG52464 (Trim to fit), Cometic p/n 245-C5424 (Spread Port)
  • Head Studs: Available from Brodix - Brodix BR HSAP (Aluminum Block)
  • Spark Plug Specs: 14mm Thread, .750'' (3/4'') Reach, Gasket Seat
  • Valve Angle: 13°
  • Angle Milling: N/A
  • Flat Milling: .0060'' per cc
  • Angle Machining: N/A
  • Stud Girdle: N/A
  • Rocker Arms: Shaft System with 80/135 Spacing - T&D 2341, Jesel KPS 20592
  • Lifters: .180'' Offset
  • Pistons: Special 13°
  • Pushrods: Special Length
  • Intake Face Angle: 5°
  • Exhaust Pattern: Spread Port with Stahl Bolt Pattern Header Flange
  • Valve Centerline: 80/135
  • Spring Pockets: 1.550'' Out of the Box, May be cut to 1.625'' - No larger or deeper
  • Accessory Bolt Holes are Drilled
  • Recommended Intake Manifold: Fuel Injection

  • Specifications:

    Manufacturer's Part Number:

    Radical Valve Angle & Relocated Spark Plug
    13° Intake & Exhaust Valve Angles

    The Brodix AK series is the latest in sprint car technology. This head offers new features such as: a 13-degree valve angle, a relocated spark plug and down nozzle location, and a 80/135 valve spacing, and a raised valve cover rail. The BP AK head is offered in a couple of intake port sizes, 270cc and 285cc. Special components required for these heads are injectors, sheet metal valve covers, and a shaft rocker system. Every casting is poured from A-356 virgin aluminum and tested before Brodix utilizes their in-house processes such as finish machining and heat treating to assure that you receive the best products for your hard-earned money. The industry standard has been taken to the next level with modernized CNC porting. Other features include a thick deck surface, drilled and tapped holes on the ends for standard drive accessories, phosphorous bronze valve guides and interlocking valve seats installed. Sold in Pairs. !

      VALVE SPRING   Specs
      1.550'' Diameter Valve Spring for Mechanical Roller Lifter Cam
  • Spring Pressure Open: 550 lbs.
  • Spring Pressure Closed: 240 lbs.
  • Installed Height: 1.950''
  • Max Lift: .700''
  • Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.