106-5782 3-7/16" forged stroker piston kit. +.090"
Fits: 41-84 Big Twin with 84" (4-1/2" str…
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Specifications
- Brand
- S&S
- Part Number
- 106-5782
- OEM Reference
- —
- Pack Quantity
- Sold as a set
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
This S&S forged stroker piston kit is designed for 1941 to 1984 Big Twin engines running stroker flywheels, specifically 84-inch, 86-inch, and 88-inch setups. These 3-7/16 inch bore pistons feature a 50cc dome volume and are engineered with an advanced alloy and skirt profile to ensure low noise and a long service life. Depending on your stroke, you can expect compression ratios ranging from 8.4:1 with a 4-1/2 inch stroke up to 10.8:1 with a 4-3/4 inch stroke. This kit is sold as a set and comes complete with wrist pins, clips, and rings. It is a professional-grade solution for Knucklehead, Panhead, and Shovelhead owners looking to maximize displacement while maintaining reliability.
Manufacturer part number: 106-5782.
Fitment
41-84 Big Twin with 84" (4-1/2" stroke); 86" (4-5/8" stroke) & 88" (4-3/4" stroke) engines
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