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Old 07-01-2008, 07:41 PM
Jason Hart Jason Hart is offline
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Join Date: Jul 2001
Location: Hayden, ID
Posts: 228
Default Early Model Year Engine Codes

I'm trying to figure out what would be the correct engine codes for my 1970 GTO. The car was an early production vehicle that left the factory around Sept 1969. It should have a WT code block in it. The block would have been cast in 1969, so would the year digit by the distributor be a 9 or a 0? What about he casting number, early 1970 or late 1969? The codes for 69 GTO and 70 GTO 400's are both WT, how do you tell them apart? Simply by the production date? Could a late production 1969 GTO and an early production 1970 GTO have the same block in them?

Thanks,
Jason

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1977 Trans Am 400/4spd
1972 LeMans 400 Sport
1970 GTO 400/3spd
1965 GTO 4brl/4spd

Hi, my name is Jason . . . and I'm a Pontiholic!
 


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