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Old 10-12-2018, 05:50 PM   #4
mr48chev
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Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,817
Re: GMC 270 engine mystery.

The Old GMC site doesn't show engine numbers that I can find. http://www.oldgmctrucks.com/index.html

I did find this with casting numbers http://home.znet.com/c1937/Cast.htm
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My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.
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