Both are 435 hp Tri power, square port intakes. The 852 intake was used in '68 only. The 797 intake was used for '69, but did make it onto some late '68 cars. Iirc, the 852 was considered a "low rise" intake, whereas the 797 is a "high rise"design. Performance-wise, the 797 is the better intake. Depending on what you're trying to accomplish, either intake will work for your application. If you are trying to get it Judged, then I would suggest using the manifold design the car originally had, going by the build date of the ENGINE. Most folks won't be able to tell which one you have, except seasoned Judges. There is a large visual difference between the two, if you really look.
btw...a March build date is NOT early. '68 assembly started in August of '67....
Not really a "late" build date, either. I would have to assume, for your purposes, that the car originally had the 852 intake.
|UPDATED|9/9/2015 7:36:12 PM (AZT)|/UPDATED|
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