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Re: need some engine decoding....
There is something wrong with the code that you posted as most codes have 8 digits. The "6" in your posting seems to be an extra number.
Anyway assuming the "6" is not supposed to be there, this is what I came up with.
T1018CTB
T= Tonawanda, manufacturer of the engine
10= October, month of manufacture
18= October 18, day of manufacture
CTB= 402 or 396 used in 1972 cars, (Chevelles, Full size, and Camaro)
The cast date code will confirm my assumption or disprove it.
Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end
1965 Impala SS 400 sbc, Muncie rock crusher
1966 Impala SS 396 bbc, TH 400
1969 El Camino, 350 sbc, TH 350
1971 Snowplow built on a Blazer frame
1972 GMC Short bed, stepside, TH 400, 427 BBC
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