Product Information
Bolt-on kit, works with the stock crankcases
41/4in. bore cylinders with a new 11:1 forged piston design
When paired with an S&S 4.625in. stroker flywheel (sold separately), engine will be a true 131 cubic inches
Retains stock engine height
Kits include 0.045in. MLS (Multi-Layer Steel) head gaskets
Stock engine height is retained
Original engine serial numbers are retained
131in. cam cover badge included
Made in the U.S.A.
