Race-Rite RR BB-O Series Cylinder Heads
  • 270cc Oval Intake Port Volume
  • Unassembled, Bare Head

  • Race-Rite RR BB-O Series Cylinder Heads
  • 270cc Oval Intake Port Volume
  • 1.550'' Diameter Valve Springs - 360# Open, 140# Closed Spring Pressure




  • Race-Rite RR BB-O Series Cylinder Heads
  • 270cc Oval Intake Port Volume
  • 1.550'' Diameter Valve Springs - 550# Open, 240# Closed Spring Pressure







  • Race-Rite RR BB-R Series Cylinder Heads
  • 294cc Rectangle Intake Port Volume
  • Unassembled, Bare Head
  • $884.99
    Estimated to ship direct from manufacturer on 07/17/24, pending manufacturer availability.
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    Lowest Price Guarantee

    Race-Rite RR BB-R Series Cylinder Heads
  • 294cc Rectangle Intake Port Volume
  • 1.550'' Diameter Valve Springs - 360# Open, 140# Closed Spring Pressure



  • Race-Rite RR BB-R Series Cylinder Heads
  • 294cc Rectangle Intake Port Volume
  • 1.550'' Diameter Valve Springs - 550# Open, 240# Closed Spring Pressure







  • Race-Rite RR BB-2 PLUS Series Cylinder Heads
  • 312cc Rectangle Intake Port Volume
  • Unassembled, Bare Head
  • $900.24
    Estimated to ship direct from manufacturer on 08/09/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    Race-Rite RR BB-2 PLUS Series Cylinder Heads
  • 312cc Rectangle Intake Port Volume
  • 1.550'' Diameter Valve Springs - 360# Open, 140# Closed Spring Pressure



  • Race-Rite RR BB-2 PLUS Series Cylinder Heads
  • 312cc Rectangle Intake Port Volume
  • 1.550'' Diameter Valve Springs - 550# Open, 240# Closed Spring Pressure