S&S Forged 3 5/8" Bore Piston Kits for 1984-'99 HD Big Twins 88", 93", & 98" Stock Style Heads
*Small Diameter Flywheels Recommended Piston Fitment: Close: 0.0015"-0.0020" Loose: 0.0035"-0.0040"
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.
NOTES:*Small Diameter Flywheels Recommended Piston Fitment: Close: 0.0015"-0.0020" Loose: 0.0035"-0.0040"
Instructions Link (Click Here)
Manufacturer: S&S Cycle
Part #: 92-1904
S&S Piston, Set, 3-5/8″, +.040″, FD, .792″ WP, HSF, 1984-’99 bt 92-1904
- Brand: S&S Cycle
- Product Code: 92-1904
- Availability: Special Order
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$438.95
Tags: S&S Cycle, Harley Davidson, Pistons