ST 5.0 Series Cylinder Heads
  • 171cc Intake Port Volume
  • Unassembled, Bare Head
  • $1,302.99
    Estimated to ship direct from manufacturer on 05/02/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    ST 5.0 Series Cylinder Heads
  • 171cc Intake Port Volume
  • 1.470'' Diameter Valve Springs - 325# Open, 125# Closed Spring Pressure
  • $1,635.99
    Estimated to ship direct from manufacturer on 05/02/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    $1,579.99
    Estimated to ship direct from manufacturer on 05/02/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    $1,634.90
    Estimated to ship direct from manufacturer on 05/02/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    $1,557.60
    Estimated to ship direct from manufacturer on 05/02/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    ST 5.0 R Series Cylinder Heads
  • 171cc Intake Port Volume
  • Unassembled, Bare Head
  • $1,302.99
    Estimated to ship direct from manufacturer on 05/02/24, 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



  • $1,558.99
    Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
    FREE Shipping
    Lowest Price Guarantee

    BP ST 5.0 R Series Cylinder Heads
  • 185cc Intake Port Volume
  • 100% CNC Ported
  • Unassembled, Bare Head
  • $2,841.60
    Estimated to ship direct from manufacturer on 05/02/24, 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