M-6268-A302*289/302/351W/351Full roller chain with 9-position multi-index crank sprocket. Ford Racing includes thrust plate. Cam sprocket is made from cast iron
M-6268-B302*289/302/351W/351Ford RacingSame as M-6268-A302, except cam sprocket is made from steel for maximum competition engines. Use with hardened thrust plate M-6269-A351.
M-6268-A351*351C/351M/400Full roller chain with 9-position multi-index crank sprocket.