Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
09-27-2008, 05:05 PM
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copo question
engine block is cast with Casting 3963512 and there is the letter T cast in front of the casting number,am i correct in thinking the letter T stands for a truck engine.
thanks 
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#2
09-27-2008, 05:15 PM
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Re: copo question
That letter "T" stood for Tonawanda,New York.It was one of the few plants casting engines & related parts for ALL Chevrolet vehicles back then.
If your engine was intended for a Truck application on the assembly line,it's engine code prefix,stamped into the machined broached stamping pad behind the alternator,will begin with the letter T...as in TJS.
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