Engine Kit, GX390 Stroker, 420cc (+.200), Billet Crank & Forged Piston

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Crankshaft Balancing(optional):

Do Not Balance

Electronic Balance Crankshaft (w/mallory)[Add $140.00]

Product Code: BILLETSTRKIT390

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

Billet Steel Crank producing 420cc
ARC Billet Rod
Forged Diamond 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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Engine Kit, GX390 Stroker, 420cc (+.200), Billet Crank & Forged Piston

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