Thread: 503 engine
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Old 10-19-2017, 02:08 PM   #70
MFD 56Gmc
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Join Date: Oct 2017
Location: Manorville, NY
Posts: 2
Re: 503 engine

Ours has 20K miles and runs well. It leaks a ton of oil though when sitting. I'm sure it needs an oil pan gasket amount other things. It's only used as a parade truck these days so it comes out only a couple of times a year. What we have been having problems with are things like brakes, electrical issues etc. We have been talking about restoring the truck, but cant find anyone that wants to touch it. A thought by out district was to yank the motor and trans and install a modern crate motor. I feel it's a shame to do that, so I'm trying to find some resources to freshen up what we have and to make it a little more reliable. I am a boat mechanic by trade so with the right resources I know I could tackle this myself.
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