Fits: Harley Davidson Big Twin 2007-up Models
S&S® highly recommends installing a performance cam for easier starting and better engine performance.
S&S high flow cylinder heads will provide further horsepower gains and are machined for installation of manual/electric compression releases.
For an additional .2 bump in compression, order .030"" thick head gaskets #900-0216 (2 pack). Remember to check your clearances.
Cylinder w/ piston kits include fitted pistons and cylinders that require no boring or honing
""Pretty fast for a stock bike"" That's a comment you might hear when you are running our redesigned S&S® cylinders. We've made a host of changes to improve the strength characteristics and cooling capabilities of the cylinders, while making them cosmetically difficult to tell from stock jugs.
1999 – 2012 big twins - 3 7/8"", 3.927"", 4 1/8"" bore
1984 – 1999 big twins – 4 1/8"" bore
Full fin pattern on camshaft side closely resembles OEM shape
11 fins rather than 10 fin configuration
Durable black or silver powdercoat paint matches crankcase and head paint color
S&S Logo is less conspicuous and the part number has been removed on primary side of the cylinder
Full fin pattern on pushrod side closely resembles stock cylinders
Parting lines have been cosmetically improved
Full circumference fins give greater heat dissipation
Appearance is close to stock cylinder for ""sleeper"" effect
Available in powdercoated wrinkle black or powdercoated silver finish
- Displacement - 106""
- Stroke - 4 3/8""
- Bore - 3.927""
- Cylinder Length - 4.937""
- Piston Type - Forged
- Stock Compression Ratio - 10.0:1
- 89cc S&S Compression Ratio - 9.7:1