Back in 1976 while in high school I bought a 1970 TA from the lady next door,she did buy it new .The block was replaced by the dealer , I do remember the numbers on the block looking like it was stamped by hand, the only reason I remember this is I was rebuilding the enging I thought i had a 455 bought parts for a 455 Thay did not fit ,that is when we got into the numbers, we used a motors book to look them up and foud out it was a 400 ,thats when we found the stamping did not look like other pontiacs we looked at. And this was well before any new about matching numbers. Any way I rebuilt my first eng at 16 wow
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