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Piston 420 (90mm), Billet Flat-top

Piston 420 (90mm), Billet Flat-top

Product Code: nr420
Billet Flat-Top Piston to Fit 420cc OHVs, 420 Predators, and +.080 Over GX390s
90mm bore piston (+.080 for GX390) with standard compression height. Use with a +.040 rod for maximum compression. Pistons have valve reliefs for high-lift cams to fit both Honda and Hemi heads.
Wrist pin and clips included. Rings not included. For rings, order our part Ringset-90-076076106


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