That engine is probably out of a 1973, 1974 or 1979 truck. Search TAJ here

You need to check the date code on the block.

edit: Since it has an HEI distributor, it must be 1979

Last edited by Gord&Fran; 12/12/2017 5:10 AM.
Gord 🇨🇦
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1954 1/2 ton 235 4 speed