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Labor Day Putting down your wrenches or time for MORE wrenching? 
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Mod | | | Forums66 Topics128,006 Posts1,055,271 Members48,418 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#36519 12/06/2004 7:30 PM | Joined: Sep 2004 Posts: 14 Junior Member | | Junior Member Joined: Sep 2004 Posts: 14 | Hey Guys,
Quick question; I have a 66 Chevy 1/2 ton with what is supposed to be a 250. I pulled the # off the boss behind the distributor but have had no luck running it down. So the # is FO717TCJ, any idea? Thanks,
MikeP | | |
#36520 12/06/2004 7:53 PM | Joined: Mar 2004 Posts: 58 Member | | Member Joined: Mar 2004 Posts: 58 | That looks like a serial number. Try looking for the casting number on the passenger side of the engine. I hope this helps. Dano
69 C10 LWB 250 L-6/3spd 79 C30 Crew Cab Dually 454 V-8/TH-400
"Takes more than a coat of paint to make it at Thunder Road!"
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#36521 12/07/2004 4:17 AM | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | According to your numbers, it's a 1970 250 ci that had a 'glide behind it, built in Flint on the 17th day of July. That's what I came up with, Scott | | |
#36522 12/07/2004 12:42 PM | Joined: Jan 2001 Posts: 662 Shop Shark | | Shop Shark Joined: Jan 2001 Posts: 662 | | | |
#36523 12/07/2004 2:25 PM | Joined: Sep 2004 Posts: 14 Junior Member | | Junior Member Joined: Sep 2004 Posts: 14 | Thanks for the help. I have the original build sheet when the guy bought the truck new and the engine # does not match. Kinda thought that it was a newer model engine.
MikeP | | |
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