ST 5.0 Series Cylinder Heads
  • 171cc Intake Port Volume
  • Unassembled, Bare Head
  • $1,342.76
    Estimated to ship direct from manufacturer on 05/15/24, pending manufacturer availability.
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    ST 5.0 Series Cylinder Heads
  • 171cc Intake Port Volume
  • 1.470'' Diameter Valve Springs - 325# Open, 125# Closed Spring Pressure
  • $1,684.68
    Estimated to ship direct from manufacturer on 05/15/24, pending manufacturer availability.
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    $1,604.76
    Estimated to ship direct from manufacturer on 05/15/24, pending manufacturer availability.
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    $1,634.99
    Estimated to ship direct from manufacturer on 05/15/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    $1,604.76
    Estimated to ship direct from manufacturer on 05/15/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    ST 5.0 R Series Cylinder Heads
  • 171cc Intake Port Volume
  • Unassembled, Bare Head
  • $1,342.76
    Estimated to ship direct from manufacturer on 05/15/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    ST 5.0 R Series Cylinder Heads
  • 171cc Intake Port Volume
  • 1.470'' Diameter Valve Springs - 325# Open, 125# Closed Spring Pressure




  • BP ST 5.0 R Series Cylinder Heads
  • 185cc Intake Port Volume
  • 100% CNC Ported
  • Unassembled, Bare Head
  • $2,927.36
    Estimated to ship direct from manufacturer on 05/15/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    BP ST 5.0 R Series Cylinder Heads
  • 185cc Intake Port Volume
  • 1.470'' Diameter Valve Springs - 325# Open, 125# Closed Spring Pressure100% CNC Ported