S&S 97" BIG BORE KITS

•The 97” Big Bore kits for 88” motors yield excellent results with stock cylinder heads

 

 â€¢Feature the largest bore (3.927”) that can safely be used in a cylinder with stock spigot diameter

•Even though stock cylinders can be bored to fit the 3.927” pistons, the included S&S cylinders feature a much stronger cast iron liner to stand up to the added power

ʉۢEasy 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

 â€¢Specifications: 3.927” bore, 4” stroke, 97” displacement, 9.7:1 compression ratio with stock heads (9.3:1 compression ratio with S&S 89cc heads or 10.7:1 with S&S 79cc heads)

ʉۢKits include cylinders, pistons, rings and gaskets (head, base and exhaust)

ʉۢMade in the U.S.A.

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