Thread: 503 engine
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Old 10-19-2017, 09:49 AM   #69
55 gmc 630
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Join Date: Oct 2017
Location: grand junction colorado
Posts: 15
Re: 503 engine

I the guy who started the thread certainly managed to locate parts to rebuild and engine but beyond that I have not seen a whole lot. Mine has under 30k original and I am hoping it never needs opening up. I would like to understand the carb better and to know how the original governor system was hooked up- mine seem to be unplumbed. Along those lines...there are various holes/ports on distributor I would like to know what they are all for too. Yes, let's keep in touch regarding our trucks . I will try and add pics to my album of the carb I have on mine.
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