302 Q
On the drivers side of the block I think it is, near where the bellhousing bolts to it, just below the cylinder head should be a group of numbers, you're looking for a letter/number combo, like C6 or C7, for Ford the letters are C=60's D=70's E=80's F=90's etc. And the number is the particular year in that decade. Like C6=1966, D1=1971, mine is an F1 for example, '91. There will also be some other letters after it that will tell you what it was originally cast for. Like mine is F1SE which is a block intended for a 1991 Thunderbird Coupe. But from what I understand, the chassis designation may not be accurate since Ford used blocks where they needed them
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