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Old 07-12-2016, 09:16 PM   #6
MikeB
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Join Date: Jul 2000
Location: North Texas
Posts: 3,663
Re: Just bought a 67 GMC. My first truck of this body type...

What is the casting number on the back of the block? It's on the ledge behind the driver's side cylinder head. Here are some 1967 283 casting numbers:

3849935
3896944
3896948

More numbers here for 283s and other small blocks:
http://www.mortec.com/castnum.htm
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Mike
1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold
1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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