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Re: Engine Code question
Well, the "YS" is the application code. YS was used for a slew of engines over the years. If you could supply the casting date (4-digit, alpha-numeric code near the distributor), it would be a lot easier to narrow it down. '72 YS would probably be a GTO or LeMans 400 with auto trans, but I can't be certain without that date! It DOES fall into the "nothing special" 400 category. By '72, 400s were pretty much all the same with a few minor differences. Good candidate for a stroker!
Jim
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