No idea what the original application is for this but it's almost identical in appearance to the 65-66 HiPo spacer. Total length including pilot tip is 2.39", only 1/32" longer than a real one which would not be noticed when installed IMO. It has a wider 3/4" water pump snout hole so possibly for a truck or a generic part that could be used on multiple size pump snouts by using a sleeve. I've already installed the 5/8" sleeve so ready to go on a SBF pump. Really nice condition, better than a repop if you can't find an original, or use on a clone. SOLD.
Please PM or email if interested.
Thanks,
Dave