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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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Mod | | | Forums66 Topics128,009 Posts1,055,295 Members48,419 | | 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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jul 2004 Posts: 60 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2004 Posts: 60 | I ran into a friend of mine who told me he had a 256 out of a '64 half ton he would be willing to sell me its a new rebuild for 500 bucks he must have been mistaken when he said 256 because I have never heard of that before. The only thing that I can think of is he meant 250, 260, or 265. Either way what mods need to be done to fit this engine in My '53 half ton????? It also comes with a four speed transmission. You can't beat the price and I want to try it out. Thanks in advance for you're help, Jess
1951 3100
| | | | | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | The 64 1/2 ton originally came with a 230. Best way to get a positive id is to get the casting number off the passenger side of the block. the 230/250 series it was located on the lower portion, about halfway back. Earlier engines had the casting number in the area of the starter. Go to www.inliners.org to the casting # section to look it up. If it is the later series engine, it won't fit your truck without different motor mounts. The later engines were smaller than the old 235/261.
Fred
52 3600
69 C-10
| | | | | | Anonymous Unregistered | | Anonymous Unregistered | Sounds like what he was telling you is that the engine is a 250 six(cylinder). | | | | | Joined: Jul 2004 Posts: 60 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2004 Posts: 60 | That would make sense Thanks Jess
1951 3100
| | | | | Joined: Oct 2004 Posts: 175 Member | | Member Joined: Oct 2004 Posts: 175 | a 230 bored to 4" is a 254. Best thing; get the casting numbers and post them here.
We don't need no stinking V-8s!!
| | | | | Joined: Oct 2004 Posts: 1,780 Master Gabster | | Master Gabster Joined: Oct 2004 Posts: 1,780 | Jess here's an example of a 250 in a AD truck. I believe that there are a few retrofits in the Gallery and amongst the bolters on this page. Good luck......g 250 Retrofit | | |
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