Big Bore & Stroker

💥 Big Bore 💥

Available for: Honda GX200, GX240, GX270, GX390 | Predator 212, 224, 420 | Tillotson 212, 225

SPEED PARTS SPEED KITS ENGINES SHORT BLOCK BIG BORE EXHAUST
Parts | Stock | Hotrod

Big Bore Kits

Stroker Kits

Cylinder Heads

  1. Engine Kit, GX390/420, 420cc, +.200 Billet Crank, 88mm Forged Piston
    Engine Kit, GX390/420, 420cc, +.200 Billet Crank, 88mm Forged Piston $928.00
  1. Engine Kit, GX390/420, 440cc, +.200 Billet Crank, 90mm Forged Piston
    Engine Kit, GX390/420, 440cc, +.200 Billet Crank, 90mm Forged Piston $894.00
  1. Engine Kit, GX390, 420cc , +.200 Cast Crank, 88mm Cast Flat-Top
    Engine Kit, GX390, 420cc , +.200 Cast Crank, 88mm Cast Flat-Top $321.00
  1. 414cc GX390 Honda Crank Engine Kit
    414cc GX390 Honda Crank Engine Kit $467.00
  1. 440cc GX390 420 Cast Crank Engine Kit
    440cc GX390 420 Cast Crank Engine Kit $312.00
  1. Crankshaft, Stroker, GX390 +.200 Billet Steel (460cc with 92mm Bore)
    Crankshaft, Stroker, GX390 +.200 Billet Steel (460cc with 92mm Bore) $516.00
  1. Engine Kit, GX270, 292cc (+.160) Stroker, R (2 to 1 Gear Box Cranks)
    Engine Kit, GX270, 292cc (+.160) Stroker, R (2 to 1 Gear Box Cranks) $482.00
  1. Engine Kit, GX270, 292cc (+.160) Stroker, Q (1'' Shaft)
    Engine Kit, GX270, 292cc (+.160) Stroker, Q (1'' Shaft) $359.00
  1. 414cc to 433cc Stroker Crank with Genuine Honda Q Crankshaft
    414cc to 433cc Stroker Crank with Genuine Honda Q Crankshaft $251.00
  1. 69mm Stroker Crankshaft Producing up to 460cc - GX390 & 420 Predator
    69mm Stroker Crankshaft Producing up to 460cc - GX390 & 420 Predator $129.99
  1. 72mm Stroker Crankshaft for GX390 & 420 Predator Engines
    72mm Stroker Crankshaft for GX390 & 420 Predator Engines $129.99