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| | | | Joined: Oct 2004 Posts: 19 New Guy | | New Guy Joined: Oct 2004 Posts: 19 | I bought a 1952 1-1/2 ton Chevy recently. It has a 235 with an oil bath air filter and Rochester carburetor with a manual choke.
I know the 1/2 ton had a 216 in 1952. What did the 1-1/2 ton have? I thought some of the heavier trucks had low pressure 235s instead. I'm trying to find out if my engine is original.
Thanks for any help on this issue.
Rob Mathis
48 Half Ton with 235 & SM420
| | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | I believe you are right that the 235 was used in big trucks before it was used elsewhere. But since this motor is in a 50+ year old truck, you should check the casting and serial numbers to be sure you know what you have.
My '52 has a stock looking motor in it, but my '51 1-1/2 ton has a later motor in it. I've not yet checked numbers to see if they are what I think...
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Apr 2002 Posts: 1,571 Shop Shark | | Shop Shark Joined: Apr 2002 Posts: 1,571 | It might be the "boat anchor" low-pressure 235. If you're lucky, it has a later 235 or a 261 in it. There is an article on the big trucks around here: http://www.stovebolt.com/features/bigtrucks/index.htm | | | | | Joined: May 2001 Posts: 477 Shop Shark | | Shop Shark Joined: May 2001 Posts: 477 | the 235 was the original engine that year. i believe by 52 the better engine was used. 48 mph. | | | | | Joined: Oct 2004 Posts: 19 New Guy | | New Guy Joined: Oct 2004 Posts: 19 | Thanks for your help. My 235 (1952 1-1/2 ton) does not have the two acorn nuts but rather four bolts that secure the valve cover around the outside flange. So I guess this means that my 235 is for sure high pressure and not original to the truck. (this truck ran until 10 years ago.)
How can I find the year knowing the block number off the engine adjacent to the distributor?
Rob Mathis
48 Half Ton with 235 & SM420
| | | | | Joined: Sep 2000 Posts: 390 Shop Shark | | Shop Shark Joined: Sep 2000 Posts: 390 | go here web page to check the numbers
1942 1\2 Ton 1951 1\2 Ton 55 willys cj-5 1954 and 59 Cushman Scooter 1960 Biscayne Sedan 1965 G/10 panel van 1966 C/30 Grizzly Motorhome You know you're a 'Bolter when your daily driver is older than you are... My progress pics | | | | | Joined: Dec 2001 Posts: 215 Shop Shark | | Shop Shark Joined: Dec 2001 Posts: 215 | my 46 has the orgnl 235 wich is realy a board and stroked 216
and one of my 50 parts trucks has a difrent 235 it looks like my old one but evrything is bigger and wont enterchange with the old low-pressure 235s or the newer hi pressure 235s | | |
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