S&S, 107" to 124" big bore conversion cylinder & piston kit - 17-23 107" M8 989908 blocks the sun's glare from

blocks the sun's glare from the speedometer glass to make it easier to read the speedometer

goggle or helmet faceshield

Mounts Shovel exhaust flange to cylinder head

late-model Triumph Bonnevilles and Harley Davidson

as used on Flatheads

S&S, 107" to 124" big bore conversion cylinder & piston kit - 17-23 107" M8 989908 blocks the sun's glare fromComplete bolt on 2025cc kit. Compatible with stock 107" engines, which have the required 4. 375" stroke. Converts the 107" engine to 124". Incl. black wrinkle cylinders with highlighted fins and 4. 250" bore forged piston & ring kit with 1. 143 deck height and 4. 3 cc dish volume for an 11: 1 CR with stock cylinder head combustion chamber volume. Incl. all required head & base gaskets and hardware. Provides a massive increase in capacity with bolt on