Big Bore Cylinder Kit - 136" Cylinder Kit - 4.625" Stroke - Black Granite w/Highlighted Fins - M8 [0931-1203]

Not compatible with H-D 4-5/8" stroke fllywheel.

• Original engine serial numbers are retained
• MLS (Multi-Layered Steel) head gaskets
• Retains stock engine height
• Stock bolt pattern
• Works with stock crankcase.
• Not compatible with VVT models.