C8A 6015 - B . A little back story; in 1968 when the 289 was no longer to be built and was
being replaced by the 302 the Ford Windsor, Canada plant was being retooled to make the 302. The 289 was being built at both
the Windsor and Cleveland, Ohio plants and so were the 302 engines to be done the same way.
After the Windsor plant had reached the point where the 302 blocks were able to be cast it
was not tooled any farther. Somewhere long the line the company decided to only produce the 302 at the Cleveland plant. I
suspect due to the 351 Windsor engine coming along. The blocks that were already cast at Windsor were then sent to the Cleveland
plant where production of the 289 was finishing up and the plant had run short of 289 blocks. These 302 blocks from Windsor
Canada, the only ones with the suffix "B" at the end of the casting number, were used to finish building the required number
of 289's at Cleveland and then were used for 302 production.
So due to this practice the only way to truely verify if the 1968 302 block with a "B" suffix
is in fact a 302 or a 289 is by checking the crankshaft. The 289 crank with the shorter stroke has an "M1" cast into it. The
302 crank with the longer stroke has "M2" cast into it. Mine had an "M1" which made it a 289!!
Unfortunately you cannot see that number in this picture. But you can see that the crank was
in pretty good shape.