What six banger do I have?

[4Baker]

Greetings

 

This is the first time I've been on this site & have to

say it looks really slick.

 

I recently acquired a 1950 Chevy 2.5 ton Flatbed truck

with a six cylinder engine. I've been asked by several

places when looking for parts what cubic inch the engine

is, but there are no ID tags or badges under the hood.

 

Does anyone know how to tell what c.i. this engine is by

casting numbers on the block or head?

 

The numbers are not easy to read, but I think are:

Head- 351 848 50

Block- F 235

 

Thanks

 

Brad

[snoman]

If it has a pressure oiling system on it it is either a old chevy "stove bolt" 235 or 261. My guess is the bigger one, the 261 in that truck. Sturdy old engine. They both had same bore and different strokes. About 145hp as I recall with real good low speed torque. .

[4Baker]

Thanks, Snoman. It does have a pressure oiling system, but the A pillar tag says it has 105 hp. Do you think that indicates the smaller ci?

 

Brad

[snoman]

Thanks, Snoman. It does have a pressure oiling system, but the A pillar tag says it has 105 hp. Do you think that indicates the smaller ci?

 

Brad

Yep, must be a 235 then. They were very tuff old engines. In the 60's when GM switched to the modern 230 and 250 6's it is not widely known that they sold the rights to the stove bolt to toyota and they used it for many many years in the Land Cruiser (they they tweaked its design some over the years) Your engine is a OHV engine correct?

[Colorado Kid]

With F235 on the block I'd say there's a REAL good chance it's a 235.

[4Baker]

Thanks to both of you for the fast replies.

 

Yes, it is an OHV motor and it has LOTS of low end torque.

Top end MPH is about 40-45, though!

 

Brad

[snoman]

I missed the F-235 in first post I guess. Your truck probaly has a 7 something to 1 rear end. It would be interesting to see what the ratio is.

[R Dogg 56]

Have to get some pics of it on here. I'll bet it looks like a real workhorse.

[4Baker]

I have some digital pics I could post, but am not sure how to convert

them from JPEG to URL.

 

Brad

[MCourson]

Top end MPH is about 40-45, though!

Hey we got ours to go 53........ downhill.

[snoman]

Many years ago a friend of mine in TN had a 1950 Dodge 1 ton munitions carrier. I looked kinda like a king sized jeep. It still had mil type tires that were about 36 inches tall and a flat head 6 with 8 speeds (4x2) It had a top speed of about 40 going down hill and you did not even want to go that fast because it had very poor brakes by design. It was a tank off road though and would go anywhere and had a engine driven front winch too. The first couple gears would not even break 10mph and it could idle up the steepest incline at a crawling speed. One time he slide it out the road down a steep hill slide sideways in slow motion and it came to rest against a tree. The incline was so steep that engine could not get fuel out of tank so he walked home and got a milk bottle filled it up with gas and took hose going to fuel pump and put it in bottle. While one person held the bottle he started the truck up and used winch on it to recover the vehical! It was undamaged by the ordeal.