Ford block engine casting numbers for 260 289 302 351 351C 351W 352 390 400 406 410 427 428 429 460

C6ME-A

with A letter

Shelby

Unconfirmed Application. Information may or may not be complete or accurate66 - 70  428

Unconfirmed Application. Information may or may not be complete or accurate67  428 Shelby GT500

Bore 4.13"

May not be driled Hydaulic

Scratched A letter in back of block