Look and see if the 2nd and 3rd digits are not an 8 and Z instead of 3 and 7. An 8 would be 1968 and the Z would be Fremont CA assembly plant.
Looks like you beat me to it. I must of been typing when you replied. I think you now got the info you were looking for. With a Dec 1st 67 date code everything matches up. Thanks for posting hopefully someone is looking for their correct engine.
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1966 GTO Vert automatic.
1969 CR Judge Ram Air III 4sp Pattern Car.
1969 GTO standard 350HP TH-400.
2006 GTO Phantom Black 6spd.
1972 Formula 455HO Ram Air.
1976 LE Trans Am 50th Anniversary Edition with T top.
1976 Formula 350.
1977 Grand Prix Model J 350.
1978 Trans am 400 Pontiac.
1979 Trans am 403 Olds.
1968 Olds 442.
1971 TR6.
Last edited by charles bledsoe; 07-17-2016 at 08:52 AM.
Reason: Timing of post
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