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Old May 8th, 2021, 05:10 AM
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Ed Snyder Ed Snyder is offline
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Join Date: Jan 2013
Location: Medford, Oregon
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Default Re: GMC V-6 ignition question

Quote:
Originally Posted by bigblockv6 View Post
There was never a small cap clip on distributor used on GMC V6 engine. The big style cap with the window was used from 1960-65 but around 1965 and even possibly 1964 the small cap, same one used on inline sixes was used on light duty engines while bigger trucks still used the larger window style cap, by 1966 all V6 engine came with the small cap distributor. I don't know why they made the change but the larger cap distributor makes better sense to me because you can adjust the points externally.
Just an FYI --

If you're interested in getting rid of your points and condenser, Pertronix makes kits for both types of distributors used on our V6 engines. They're simple to install. I've installed many of them over the years.
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Ed Snyder
Medford, Oregon
1962 1000 Pickup 401M & Muncie 318 with overdrive
1962 K1000 Suburban 401M & SM420
1965 2500 Suburban 351C & SM420 with Watson overdrive
1967 CM1500 pickup 351E & NP435
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