S&S 89" High Compression Stroker Pistons For 1984-'99 HD Big Twins And 1986-'03 HD Sportster Models W/ Super Stock Heads - +.020"
Recommended Piston Fitment: Close .0020"-.0025" Loose .0030"-.0035" Cylinders in 1986-'03 883cc HD Sportster Models may be bored from the stock 3" bore to 3-1/2" for these pistons.
These high compression 3-1/2" bore forged stroker pistons for 1984-'99 HD big twins are a high compression option for 89" stroker kits for 1984-'99 with 4-5/8" stroke flywheels and S&S Super Stock heads. 12:1 compression . These pistons may also be used in stock stroke 1200cc HD Sportster models with S&S Super Stock heads.10:1 compression. +.020" oversize.
NOTES:Recommended Piston Fitment: Close .0020"-.0025" Loose .0030"-.0035" Cylinders in 1986-'03 883cc HD Sportster Models may be bored from the stock 3" bore to 3-1/2" for these pistons.
Instructions Link (Click Here)
Manufacturer: S&S Cycle
Part #: 92-2018
S&S Piston, Set, 3-1/2″ x 4-5/8″, +.020″, Super Stock Heads, FD, .792″ WP, HSF, 1984-’99 bt, 1986-2003 xl 92-2018
- Brand: S&S Cycle
- Product Code: 92-2018
- Availability: Special Order
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$469.95
Tags: S&S Cycle, Harley Davidson, Pistons