C3AA-6394-C
63-65 260 Ford 3_4sp
64-65 289 Hipo 4v 4sp before_8/20/64
63-65 289 Ford 4v-RF 3_4sp
Block 5 Bolt pattern
Narrow Toploader pattern
Aluminum
w/ 157 tooth flywheel
C3OZ-6392-E
