Oh . . . and the T-bucket as well. :D
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I looked at the number on the block. 3782870, it has double hump heads and that's all I know. Anything else I can look for to give me anymore info
That number was used from 62 through 65 (and up to 67 in trucks) for 327's ranging from 250 to 350 HP. The suffix codes on the front of the block will tell you what HP it was originally. The block is a 2 bolt main (as all 327's are) with a small journal forged crank (not cast). The double hump heads are the high performance heads (often called fuely heads), they came standard with 1.94 intake valves, the high HP model had the the coveted (at the time) large 2.02 intake valves. These were the heads to have back then and run well even today, although they should have hardened seats installed for todays gas.
Regardless which motor it is, it will push that T plenty fast and look COOL doing it. Tune it up and have fun!