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


 
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Our Price: $913.00
Spring Sale! $821.70
Savings: $91.30

Stock Status:In Stock

Part #: NR-STRKIT-420-F

Crankshaft Balancing

Do Not Balance
Electronic Balance Crankshaft (With Mallory) [+$142]

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Description -
 
420cc Engine Kit for GX390
The ultimate kit for high-revving GX390s!
  • Billet steel crank producing 420cc
  • ARC billet rod
  • Forged Diamond 88mm flat-top piston
  • Piston rings
  • Tool steel wrist pin & 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 applications).

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