TKX bellhousing offset dowel confusion

Installing a set of .007" offset dowels to get the run out alignment in spec and it seems to me like the dowels that shift sst sent me are too long.

The side with the cut outs should go into the block right? I installed them that way but there is a good 1/4" gap when I tried putting the bellhousing on. I knocked them back out and stuck them in the bellhousing and it looks to me like they're too long.

Just want to make sure I'm not over looking something stupid here because it sure did put a halt to my weekend plans.

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