750cc Big Bore Kit for Royal Enfield 650 Twins

Complete kits include cylinders, pistons, and a head gasket
 
Stock
S&S 750 Kit
Bore X Stroke
78 x 67.8mm
83.5 x 67.8mm
Compression Ratio
9.5:1
11.0:1
 
This kit will need to be installed by a qualified machine shop as the cylinders need to be bored out and have liners reinsalled.