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90mm Flat Top Piston, for 420 OHV & GX390 Engines
4.3 (144 items)
Limited Time SaleUntil the end
23
46
45
$26.26 cheaper than the new price!!
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New $43.76
Product details
| Management number | 222425879 | Release Date | 2026/05/04 | List Price | $17.50 | Model Number | 222425879 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
90mm Aftermarket Flat-top Piston for big bore GX390s. Fits stock bore on 420 Predators (non-hemi). GX390s Blocks can be bored to accept this piston407cc using stock crank,433 with +.160 Stroker Cranks,440cc with .200 CrankIncludes Piston & Rings ( Pin and Clips not included) Picture for reference only, actual part may be slightly different
| Manufacturer | NR Racing |
|---|
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