S&S Cycle 106 in. Big Bore Kit

• The 106 in. Big Bore kits yield excellent results with stock cylinder heads
• Feature the largest bore (3.927 in.) that can safely be used in a cylinder with stock spigot diameter
• Even though stock cylinders can be bored to fit the 3.927 in. pistons, the included S&S cylinders feature a much stronger liner to stand up to the added power
• Easy installation: no need to bore or split existing cases, just swap the cylinders
• Feature the same silver or black wrinkle powder-coat as stock, so they match the stock finish of the engine
• Specifications: 3.927 in. bore, 4 3/8 in. stroke, 106 in. displacement, 10:1 compression ratio with stock heads (9.7:1 compression ratio with S&S 89cc heads)
• Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
• Made in the U.S.A.

NOTE: Not for use on Twin Cooled motors

NOTE: This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.

Included Items:

• (2) Black 11 fin cylinders
• (2) Multi layer steel head gasket
• (2) Cylinder base O-rings
• (2) Cylinder base dowel O-rings
• (2) Exhaust gaskets
• (2) 3.927" pistons
• (2) Piston pins
• (4) Piston pin clips
• (2) Ring sets
• (2) Top, Second, Oil rail and Expander ring