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Brodix 2061000

Race-Rite RR BB-O Series Cylinder Head 270cc Oval Intake Ports

Brodix 2061000
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158-2061000

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Brodix 2061000 Race-Rite RR BB-O Series Cylinder Head 270cc Oval Intake Ports $1,087.37
Race-Rite RR BB-O Series Cylinder Head
  • 270cc Oval Intake Ports
  • 119cc Combustion Chambers
  • 2.250'' Intake / 1.880'' Exhaust Valves
  • 1.550'' Dia. Springs - 140# Seat Pressure
  • Steel Retainers
  • Assembled, 1/pkg.

  • Brodix 2061000 Details

    Race-Rite RR BB-O Series Cylinder Heads

  • 270cc Oval Intake Port Volume
  • 1.550'' Diameter Valve Springs - 360# Open, 140# Closed Spring Pressure
  • Cylinder Head Specifications
  • Intake Port Volume: 270cc - Oval Port
  • Combustion Chamber Volume: 119cc
  • Valves: 2.250'' dia. x 5.218'' o.a.l. Intake / 1.880'' dia. x 5.394'' o.a.l. Exhaust ( 11/32'' Stem Diameter )
  • Valve Springs: 1.550'' Diameter - Open Pressure: 360 lbs.; Closed Pressure: 140 lbs.; Installed Height: 1.950''; Max Lift: .625''
  • Spring Retainers: 1.550'' 10° Steel
  • Rocker Studs: 7/16''
  • Guide Plates: 3/8''
  • Valve Seals: 11/32''
  • Spark Plug Configuration: Angled

    Facts and Related Components
  • Torque Heads: 70 ft-lb.
  • Torque Rocker Studs: 40-45 ft-lb.
  • Intake Gasket: Fel-Pro p/n 375-1210, Cometic p/n 245-C5430
  • Head Gasket: 4.310'' Bore - Fel-Pro p/n 375-1027, Cometic p/n 245-C5432; 4.540'' Bore - Fel-Pro p/n 375-1017, Cometic p/n 245-C5433
  • Exhaust Gasket: Fel-Pro p/n 375-1411 or Cometic p/n 245-C5429
  • Head Bolts: ARP p/n 070-135-3601
  • Head Studs: ARP p/n 070-135-4001 (6-point)
  • Spark Plug Specs: 14mm Thread, .750'' (3/4'') Reach, Gasket Seat
  • Valve Angle: 26° and 4° Intake, 17° and 4° Exhaust
  • Angle Milling: .0066'' per cc
  • Flat Milling: .0050'' per cc
  • Pushrod Slots: Standard
  • Pushrods: Check pushrod clearance with head installed on the engine block before final assembly
  • Stud Girdle: Standard
  • Rocker Arms: Standard
  • Lifters: Standard
  • Pistons: Standard
  • Exhaust Pattern: Standard
  • Valve Centerline: Standard
  • Spring Pockets: May be step cut to 1.625''
  • Accessory Bolt Holes are Drilled
  • Recommended Intake Manifold: Edelbrock RPM Air-Gap 2-O (p/n 350-7561) / Brodix HV 2007 (p/n 158-HV2007) / HV 2008 (p/n 158-HV2008) / HV 2017 (p/n 158-HV2017)

  • Specifications:

    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Volume (cc)
    119
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    Yes
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Round
    Exhaust Valve Angle
    26
    Exhaust Valve Diameter (in.)
    1.88
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Port Shape
    Oval
    Intake Runner Volume (cc)
    270
    Intake Valve Angle
    26
    Intake Valve Diameter (in.)
    2.25
    Intake Valves Included
    Yes
    Lock Style
    10 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.6
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.55
    Quantity
    Sold individually
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nut Thread Size (in.)
    7/16"-20
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Perimeter bolt
    Valve Guide Material
    Phosphorous bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    3-angle
    Valve Seat Material
    Ductile iron
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    2061000

    High Torque Intake Ports, Up to +90hp!
    26°/4° Intake & 17°/4° Exhaust Valve Angles

    Finally, the most user-friendly big block head series on the market has been developed. The Brodix Big Block Chevy Race Rite 26-degree cylinder head bolts directly in place of stock cast iron heads without you having to shop for a new intake manifold and pistons. The most important improvement is that the exhaust ports are in the stock location eliminating header or manifold interference. The Race-Rite oval and rectangle port heads are filled with years of Brodix racing technology. They help build horsepower for the budget minded racer looking to take a step up without big hit to the wallet. Race Rite is the answer for more horsepower, a hassle-free installation, and a great-looking engine compartment! As always, these heads come standard with all the fine qualities that only Brodix has to offer. 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 that is compatible with nitrous, drilled and tapped holes on the ends for standard drive accessories, phosphorous bronze valve guides and hardened valve seats installed for unleaded fuel. Sold Individually, 1/pkg. Made in the USA!

      VALVE SPRING   Specs
      1.550'' Diameter Valve Spring for Hydraulic Flat Tappet Cam
  • Spring Pressure Open: 360 lbs.
  • Spring Pressure Closed: 140 lbs.
  • Installed Height: 1.950''
  • Max Lift: .625''
  •   1.550'' Diameter Valve Spring for Mechanical Flat Tappet & Hydraulic Roller Lifter Cam
  • Spring Pressure Open: 550 lbs.
  • Spring Pressure Closed: 240 lbs.
  • Installed Height: 1.950''
  • Max Lift: .700''
  •   1.625'' Diameter Valve Spring for Mechanical Roller Lifter Cam
  • Spring Pressure Open: 745 lbs.
  • Spring Pressure Closed: 250 lbs.
  • Installed Height: 2.050''
  • Max Lift: .800''
  • Items You Need
    *NOTE: Horsepower gains compared to factory cast iron cylinder heads.