Forged 3 5/8" Bore Piston Kits for 1984-'99 HD^® Big Twins 96" Stock Style Heads

Item #: 92-1931

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$438.95

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These forged, 3-5/8" big bore flat topped pistons are used in S&S^® Sidewinder^® kits and Hot Set Up Kits^® for HD^® Evolution^® big twins with stock cylinder heads and 4-1/4" and 4-1/2"stroke engines with stock diameter (8-1/2") flywheels and 4-3/4" stroke engines with 8-1/4" diameter flywheels. 3-5/8" bore.

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*Small Diameter Flywheels Recommended Piston Fitment: Close: 0.0015"-0.0020" Loose: 0.0035"-0.0040"