implematic same engine as a selectomatic?

David, You dont say what model tractors or engines your are looking at? There was a period in production late 1964 when the engines fitted to imps were the same engine as fitted to the new selectamatic range about Dec 65. Look at the engine number on the block to confirm engine type and size. Early Selectamatic blocks were dry sleeved later were mono block but could be sleeve for service/overhaul. They generally will interchange look at oil pump length before fitting.

Ash
November 2009