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 | 
DISCLAIMER:
FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY.
510-0708-installation-instructions-for-s-s-big-bore-kits-for-royal-enfield.pdf
        
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