S&S Cycle 910-0199 3-7/8" Bore Cylinder & Piston Kit for 106" Twin Cam Stroker

The S&S Cycle 910-0199 is a complete 3-7/8" bore cylinder and piston kit designed as a replacement or repair solution for S&S 106" Twin Cam stroker engine builds. Whether you're assembling a fresh 106" stroker motor or refreshing an existing one, this kit delivers the precision components needed to get the job done right — all proudly manufactured in the USA.

Kit Includes:

• S&S 3-7/8" bore cylinders — finished in a silver powder coat
• Forged stroker pistons — designed specifically for 4-1/2" stroke flywheels
• Piston rings and wrist pins
• Head and base gaskets

Key Specifications:

• Bore size: 3.875" (3-7/8")
• Stroke: 4-1/2" (for use with S&S 4-1/2" stroker flywheels)
• Displacement: 106 cubic inches
• Compression ratio: 10.5:1
• Finish: Silver powder coat
• Compatible with stock or S&S Super Stock cylinder heads

Performance Notes:

• For 103" stock motors or motors equipped with factory 95" kits, a piston-only kit may be used; stock or S&S cylinder heads are compatible
• For best performance results, pair with appropriate camshafts, a performance air cleaner, performance exhaust, and proper fuel system tuning
• Installation requires a skilled technician; all clearances and assembly specifications must be verified prior to final assembly

Built to S&S Cycle's exacting standards, the 910-0199 cylinder and piston kit is an ideal component for any serious Twin Cam stroker build, offering the durability and precision you'd expect from one of the most trusted names in American V-twin performance.