I see the engine has the code MT, and it is numbers matching with the VIN. OK, so I went here: http://www.buicks.net/years/66/66tech.html#engine ident If you click on the CODE link for the engine identification, it states the MT code is a 425. COOL! BUT, if you go here, it says differently. http://buicks.net/shop/reference/engine_ident_63_75.html Intake casting number: 1375549 Block casting: 1364705 Carb: 4059 S What engine is this??
Am I correct in assuming that NO 425's in 1966 had Carter AFB's on them? If that is the case, then I just solved my mystery.
MT is the 401, and you are correct that 425s came with a Quadrajet in 66. The engine would also be red if it was a 425 in 66. Cheryl
The 425 is red, even in the Wildcat? I didn't know that. Thanks for the info! I learn something new everyday!
