Register now to get rid of these ads!

History C10 261 mystery

Discussion in 'The Hokey Ass Message Board' started by 62stepside longbox, Aug 20, 2015.

  1. I bought a 62 c10 stepside longbox a couple weeks ago and I am not sure if the engine is original. I know for sure it's a 261 because of the captains bars above the starter and the casting number. But my question is how did the engine get in this truck? They only came in the 2 ton trucks or in Canadian pontiac cars, but I am almost positive that it's original. The whole truck has never been messed with, the firewall even has the chalk markings from the factory and the original glass fuel filter bowl. One guy at a car show told me that on the assembly line if they didn't have a 235 available they would throw a 261 in it. Any info on this would be greatly appreciated. image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 56,036

    squirrel
    Member

    Does the engine code on the tag, match the engine code on the engine?

    But yeah, you can actually change an engine without removing the crayon marks on the firewall, or getting rid of the glass sediment bowl. And 55 years is a long time for an original engine to last, it's pretty common to change an engine in an old truck when something happens to it.
     
  3. Very cool find!... but COMPLETELY WRONG for your truck-

    Simply send it down the road to Georgia and I will GLADLY replace it with a 235 for you :D
     
  4. Rich Wright
    Joined: Jan 9, 2008
    Posts: 3,922

    Rich Wright

    Just be glad you got a 261 with your truck. It's an excellent engine that's getting hard to find.
    Get it rebuilt, add some Fenton split headers, a dual carb intake and a mild cam.
    You'll be surprised at the performance.
     

  5. 261 was the original engine in a Canadian GMC and I am pretty sure you could have ordered them in a Chevy as well.
     
  6. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,659

    Rusty O'Toole
    Member

    As others have said, if the number stamped on the engine matches the one on the ID plate it must be original. I am no Chev truck expert but it might be that the 261 was an extra cost option like the 283 V8.

    I also notice your ID plate says C15 which I believe means a heavy duty half ton. How many wheel bolts do you have? 6 for half ton, 8 for 3/4.
     
  7. And find yourself an "848" head from a 235 for higher compression!
     
    Rich Wright likes this.
  8. It's a half ton with 6 bolts
     
  9. PackardV8
    Joined: Jun 7, 2007
    Posts: 1,174

    PackardV8
    Member

    Very, very doubtful of that; being there in the day, never saw it happen.
    I've got some early '60s Chev truck books, none of which mention the 261" being an option in 1/2t C10 pickups.
    jack vines
     
  10. Rich Wright
    Joined: Jan 9, 2008
    Posts: 3,922

    Rich Wright

    I have two 261s.
    One in my '51 pickup and a machine shop fresh one ready to go in this winter, both with 848 heads plus an extra 848 in the shed:)
    I've gone through my share of 235s over the last 40+ years and I can attest to the positive difference between the two engines.
    Snatch 'em up wherever you can find 'em.
     
  11. I've got my dad's 261 that Grumpy Jenkins did some head work on (used an 848). Unfortunately, mice got in and made a mess, so now I'm looking for a spare 261 block to build.
     
  12. In Canada we did all sorts of strange things - like 409's in Pontiacs, and Monarchs instead of Mercurys, and 261's in half tons......
     
  13. I have read that Chevrolet put the left over 261's in 1963 four wheel drive trucks.

    I have never been able to confirm this fact.

    My avatar is a late 261 that is my 53 Chevy 150 car 848 head Isky C-4 pretty strong.

    I have a second early 261 with a ported polished, and milled .052 848 that is going in a model A truck.
     
  14. photo 1.JPG photo 2.JPG i checked the numbers today and the number stamped on the engine matches the number on the truck info tag. the 261 has to be original. but now the question is how did it get in this truck?
     
  15. finn
    Joined: Jan 25, 2006
    Posts: 1,288

    finn
    Member

    No mystery. I did a quick search for 1962 Chevrolet Truck Brochure and came up with The Old Car Manual Project, or something of the sort.

    They have a scan of the 1962 C10-C40 truck brochure where under the powertrain blurb it states that in 1962, for the first time, the 261 is available as an extra cost option in all Chevrolet light duty trucks.
     
    volvobrynk likes this.
  16. Road Runner
    Joined: Feb 7, 2007
    Posts: 1,256

    Road Runner
    Member

    Last edited: Aug 22, 2015
  17. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,659

    Rusty O'Toole
    Member

    Looks like the factory put it there. Lucky eh?
     
  18. squirrel
    Joined: Sep 23, 2004
    Posts: 56,036

    squirrel
    Member

    Being in Canada, anything could happen....but the brochure is neat, I never saw that before.

    [​IMG]
     
  19. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,695

    56sedandelivery
    Member Emeritus

    My father had a 62 Chevrolet PU Truck he bought new. When I was young, he took me fishing and hunting with him, something I still can't stand to this day. On one elk hunt, on the way over the pass to Eastern Washington, the truck started acting up. That was probably in about 65-66. The cam had gone flat, and the Chevrolet dealer rebuilt the TWO-SIXTY-ONE. I remember that because I was always good with numbers, at least remembering them, and my Father kept bringing up the 216/261 numbers that were confusing him. He would't believe them it was a 261, thought it was a 216 because he had one of those in a 51 Sedan he also bought new. Course he was wrong, it was a 261, and that truck was the FIRST vehicle I ever drove. I am Butch/sedandelivery.
     
    squirrel likes this.
  20. stuart in mn
    Joined: Nov 22, 2007
    Posts: 2,412

    stuart in mn
    Member

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.