S&S 131CI & 136CI BIG BORE CYLINDERS FOR MILWAUKEE EIGHT - 4 1/4"

These Big Bore cylinder and piston kits, in combination with the separately available 4 5/8" stroke crankshafts, increase the displacement of your M-8 engine to a stunning 131CI (2151CC) for 4.250" kits or 136CI (2229CC) for 4.320" kits. A large increase in displacement translates into a considerable increase in power. The cylinder and crankshaft kits are compatible with stock crankcases and retain the original engine height. The powder-coat finish perfectly matches the original engine finish. The cylinder kit includes two cylinders, two pistons, two pins, four clips, two sets of rings and head, base and exhaust port gaskets. Also included is an exclusive S&S cam cover badge for 131CI or 136CI. The 4 5/8" stroke crankshaft must be ordered separately for all applications. The pistons are compatible with OEM-style tapered pins or high-performance full-width piston pins. Since stock head bolts are single-use, you will also need eight stock head bolts or a set of S&S high-performance reusable head bolts. For all Touring and Trike (except 121CI VVT) from 2017 and all Softail from 2018.


Specifications


Pack
1


HS Code
8714109090


Origin
US


Motorcycle family
Softail | Touring | Trike




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