Re: 427 Aluminum Block Numbers
3916321 = 427 cid-425hp Passenger or 400hp, 430, 435 Vette (4-bolt)
I 27 7 = Sep. 27, 1967
18J282724 => 1 =(2nd half of body style, can only be 11 2-door sedan)
18J282724 => 8 =1968
18J282724 => J = Janesville, Wi (Passenger model)
18J282724 => Passenger model begins with 100001 so that also holds true.
Now for the ??? Are you sure its TI0I6TH? That's the only one I can't find in Colvin. I found an IH for the 390 hp 427 cid passenger model with manual (1968), but the 390 HP version was only a 2-bolt block.
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Jeff
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