Description
If you’re building a 124″ big-bore stroker engine for your Twin Cam, these S&S Cycle cylinders are essential for unlocking serious displacement gains. The 4.125″ bore provides the foundation for aggressive performance builds, while the slightly-under-nominal bore sizing and unmachined finish give you complete control over final honing and clearance specs to match your exact engine combination. Designed specifically for S&S’s proven Hot Set Up Kits, these cylinders deliver the precision and quality you expect from a manufacturer that’s been perfecting Twin Cam performance for decades.
- Bore: 4.125″
- Fits: ’99-’17 Twin Cams
- Application: 124″ stroker kits
- Finish: Wrinkle black
- Machined edges included
- Stock bolt pattern
- Unmachined bore finish
- Crankcase machining required
- Made in U.S.A.
- MPN: 910-0401







