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Username Post: Decoding Built Sheet 69 Chevelle
"2nd Year" Gold Supporting Member
Posts: 199
Loc: upstate NY
Reg: 11-12-19
06-03-21 04:47 PM - Post#2821094    
    In response to Rich 69

engine plant and assembly build date
T= Tonawanda
1st 1 or 2 #s indicate month, last 2 indicate day of month so 110 (1I0) = Jan 10th (the letter I was often interchanged with #1 on these stampings)

the casting #s on rear of block above bell housing id's what the block was and # date of bare block casting. for example many earlier small blocks used same casting # for 283, 327 and so on. There's lots of info out there if you take the time to search and x-check it avoiding the ads trying to sell something
'65 Impala SS, Crocus Yellow/blk
327 / 300 L74
M11 3 on the tree
12 bolt 3.31 open dif

Edited by docjns1 on 06-03-21 04:48 PM. Reason for edit: No reason given.
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