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#1
07-05-2005, 07:47 PM
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Bought a 69' Grand Prix at an Auction in Edmonton AB. It had a write up on the the window saying how it was only 1 of 200 or so J models that had the 428HO. Not sure if this true or not because I don't know these cars or this engine. I have seen on this forum that the engine code for a 428HO was XG, where do you find this code? Thanks
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#2
07-05-2005, 08:12 PM
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should be on the front of the engine, rh side, just below the head / deck seam.
the vin should be vertical along the timing cover on the same side. mike
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so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#3
07-05-2005, 09:33 PM
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look here for the block code.
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10C 1972 Formula 461 non A/C 08B 1969 GP J/428 non A/C |
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#4
07-05-2005, 09:40 PM
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Here's my 69 GP 428 heads. The 390hp heads should be # 16 or # 62. The 390hp block codes were XG and YK
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10C 1972 Formula 461 non A/C 08B 1969 GP J/428 non A/C |
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#5
08-18-2005, 03:09 PM
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I'm not sure where the previous owner came up with his numbers.
I have a copy of research generated by Fred Simmonds through PHS. It indicates there were 986 428HO automatic trans GPs of which 706 had C60 option (a/c). If so, that would mean there were 986 total, of which 280 were non-a/c cars. I would think not having a/c would hurt the value of a GP, but that's just my opinion. Mike |
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