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difference between 66 & 67 intake manifolds

Posted by gtojack67 
Pontiac GTO Masthead

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difference between 66 & 67 intake manifolds
June 02, 2010 08:33PM
Does anyone have some quick guidelines (or even photos or link to images) about what the differences are between the 66 and 67 4bbl intakes?
Much appreciated!
Re: difference between 66 & 67 intake manifolds
June 22, 2010 07:10PM
In case anyone else is looking for this info... here you go:

The 4 bbl intakes casting numbers are as follows

1965 9778816
1966 9782896
1967 9782896
1967 9786286
1968 9790140
1968.5 1974234
1969 all were aluminium
1970 9799068
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