Quote:
Originally Posted by Tom Vaught
Wow! That is great information.
By increasing the diameter of the SD Distributor Gear and by reducing the diameter of the SD camshaft gear they were able to get another full gear tooth into the Helical Cut Gear "mesh".
THAT is a piece of the 455 SD story that I was never aware of. Thanks formula kid.
Always like to learn something new about Pontiacs.
Tom V.
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Agreed. I searched and searched this forum for tooth count on the SD gear and came up empty. Same for searches on internet. The only thing I could find was that the SD used a larger distributor gear and smaller cam gear, but no specifics on tooth count. Thanks for the info Formulakid.
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66 GTO, 495, M22, Strange S-60 w/4.10
Sold new at Royal Pontiac (Dealer# 07-679)
70 Formula 400/auto