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Pontiac of the Month

onetrick56's 1964 Grand Prix

2020 September
of the Month

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Question

Animation Summer GIF by Chris Gannon

My cat has 2 4 bbl and a 4 speed, and what I know unless you got trips it's a 421 , how do I find out ?

 

 

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You could still have the 389.  In 1964 was the 1st year the starter is attached to the block instead of the trans, which would be the 2 speed powerglide. Still very sought after trans for drag racing.

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Are you wondering if it a 421 block? - I believe that they were available in 63 and if you have a numbers matching block you have a treasure.  Someone our there should be able to help you with this - you can probably get the serial # on line.  Sorry, but I don't know enough about the HI PO Pontiacs of the 60's except they were great cars.  My Dad had a 63 & a 64 Catalina, both were 2 dr hard tops - I loved them both.

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You need ti find the block casting number. Early Pontiacs are on the passenger side. Mid-60s is near the distributor. Later blocks had the displacement stamped on the side. I suspect you don't have an uber-valueable 421 Super Duty, but I included it in the list anyway.

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