While we're on the date code topic, I have a 70 trans am that was built in the Van Nyes plant. The cowl tag reads O4B, and if the new Firebird resto book can be believed, the car was built April 13, 1970. The block is dated January 20, 1970 (A200) and I know it's original because it has the correct VIN. One head is dated January 28th (A280) and the other is March 3th (C030). The intake is dated March 10th (C100). The guy I got the car from had it since 1973 and said the engine was all original. Any thoughts on the length of time between date codes, is this normal? FYI, the original carb is gone but the distributer is correcct and dated January 12th (0A12)
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