S&S Cycle 92-2016 89" High Compression Stroker Pistons For 1984-'99 HD® Big Twins And 1986-'03 HD® Sportster® Models W/ Super Stock Heads - Standard harley toy Includes adapters that allow use

Includes adapters that allow use of wide band or stock O2 sensors

Fitment: Arlen Ness® Stage 2 Big Sucker™

outer cam gear

The S&S 11 fin cylinder design closely resembles OEM shape and come prefinished – ready to install

S&S Cycle 92-2016 89" High Compression Stroker Pistons For 1984-'99 HD® Big Twins And 1986-'03 HD® Sportster® Models W/ Super Stock Heads - Standard harley toy Includes adapters that allow useS&S Cycle 92 2016 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. Standard bore. Install Instructions DownloadAdditional Install InstructionsFITMENT