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Engine Kit, GX390/420, 420 cc kit, +.200 Billet Crank, 88mm Forged Piston
Engine Kit, GX390/420, 420 cc kit, +.200 Billet Crank, 88mm Forged Piston


 
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Our Price: $819.99

Stock Status:In Stock
Part #: NR-STRKIT-420-F

Crankshaft Balancing

Do Not Balance
Electronic Balance Crankshaft (w/mallory) [+$123]

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Description -
 
420cc Engine kit. for GX390s. The ultimate kit for high Revving GX390s

  • Billet Steel Crank producing 420cc
  • ARC Billet Rod
  • Forged Diamond 88mm Flat-Top
  • Piston Rings
  • Tool Steel Wristpin & Clips

Puts piston at TDC, Note: This is not a bolt in kit, but for experienced engine builders.

Available unbalanced or Fully Balanced (not needed for most appications) .


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