S&S CYCLE Piston Kit 106-5556
Part Number: 09101938S&S CYCLE
- SKU:
- 09101938
- MPN:
- 106-5556
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 2.37 LBS
Description
If you're running a 883cc or 1200cc Big Twin and want genuine displacement gains without a complete engine overhaul, this S&S piston kit delivers 1250cc of additional cubic inches at a proven 10.3:1 compression ratio. The flat-topped design maximizes chamber efficiency while the cast construction offers durability under sustained performance. This is a straightforward bolt-in upgrade that pairs well with your existing heads—or elevates performance further when combined with S&S CNC ported cylinder heads.
- 1250cc displacement upgrade
- 10.3:1 compression ratio
- Cast flat-top pistons
- 1984–1999 HD Big Twins
- Compatible stock 1200cc heads
- 3-9/16" bore diameter
- Stock 1200cc cylinders compatible
- 1986–2003 883cc cylinders (rebore required)
- S&S CNC heads recommended
- MPN: 106-5556
Specs
COMPRESSION RATIO IMPERIAL: |
9.25:1 |
DISPLACEMENT: |
89' |
TYPE: |
REPLACEMENT |
BORE - OVERSIZE: |
+0,020' |
BORE SIZE IMPERIAL: |
3.500' |
PISTON HEAD SHAPE: |
FLAT TOP |
PRODUCT NAME: |
PISTON KIT |
RIDING STYLE: |
STREET |
STROKE LENGTH IMPERIAL: |
4-5/8' |
UNITS: |
KIT |
BORE OVERSIZE - IMPERIAL: |
+0.020' |
PISTON MATERIAL: |
FORGED |
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