Thread: 403 Oldsmobile
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Old 01-24-2020, 09:46 AM   #14
HP HUNTER
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Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
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Default Re: 403 Oldsmobile

Those windows can be patched and welded up........You would have to be a hard core Olds person to want to bother. When you take a good look at a 455 block, I'am sure the bore and main housing bore size of the 403 block looks darn tempting.
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