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I plan on putting a 59 235 in my 40 PU. I was planning on using 2 mono's w/ headers. I have 2 carbs used on the 216's. The 59 engine has an auto choke carb that has a larger throat. Would I be better off finding another like the 59? Or should I be going after a small 4bbl intake & carb set up? I don't plan on getting radical with the engine. Thanks.

Truckeroy

Truckeroy,

I am using an Edmund's Custom water heated intake with Stromberg bvox-2 carbs. I have some pictures on my webpage. My truck is also a 1940 1/2 ton. If you are using 2 carbs, I would think you would want 2 smaller ones.

http://home.twcny.rr.com/schickling/1940Chevy/images/DSCN2109.JPG

http://home.twcny.rr.com/schickling/1940Chevy/images/DSCN2110.JPG

http://home.twcny.rr.com/schickling/1940Chevy/images/DSCN2111.JPG

http://home.twcny.rr.com/schickling/1940Chevy/images/DSCN2112.JPG

http://home.twcny.rr.com/schickling/1940Chevy/images/DSCN2113.JPG

Bill Schickling

truckeroy,
216 carberators had a smaller bolt pattern & will not fit on a 235 manifold.
robert.

They will if you drill out the base. My Strombergs were meant for the 216. The guy that rebuilt them drilled the bases for the larger 235 stud spacing. I know of 2 guys locally that run carbs this way.

Bill Schickling

Thanks guys for the info.
Roy

Bill,

Nice carbs, where did you get those match Stromberg BXOV-2's?

Tim
52pu

Tim,

Thanks. I looked a long time to find a matched pair of strombergs for my truck. Now if I can just get a radiator in place to run the engine.

Bill

Bill,
You're engine looks great! I was trying to figure out your routing for the intake heat. It looks like you have a Langdon spacer behind the thermo.housing. Is the routing from the heater hose outlet on the water pump to the intake and back to the thermo housing spacer? Do you have the heater hooked up also? I'm still formulating a plan on building my 40 and you guys are a big help. When I built my 50 a few years ago, I was going to put a 6 in it and chickened out and went with a V8 because it was easier and cheaper. I'm going with the 6 this time, but not the 216 that's in it.
Thanks,
Roy

Roy,

Yes I have Tom Langdon's spacer behind the thermostat housing. I am not running a heater. So I routed copper over the top of the water pump to a 90 degree elbow. Then another pipe under the headers and intake an looped it back on to the intake. From the the other side of the intake I went directly to the spacer. I had another thread here where I asked if I could bypass the long loop under and over to get to the water pump, but that is what is going to move the water so I don't believe you can eliminate that part.

Bill

I have another stupid question. I keep hearing that the intakes and carbs are not the same between the 216 & 235. I believe the ID's of the intake ports are smaller on the 216, but the dimensions center line to centerline seem the same. Also, I have a carb that looks exactly like the one on my 216 in the 40. It fit on the 59 325 intake with no problem. I haven't taken the carb off the 216 in the 40, but it seems to measure the same as the other carbs. What are the differences? What am I missing?

Thanks,

Roy

Roy,

I used to remember the exact dimensions but as I sit here they don't come to me. The ports are smaller on the 216 head and intake and the stud spacing is less on the 216 and the 235. I believe the stud spacing on the 235 is 2 15/16.

The ports on the head are spaced the same, so some people do mix and match the manifold and heads but I would think for any real performance you would want the 235 intake with a 235 head.

Bill

Tim,

I got my stromberg's from a guy near Chicago. His name is Ed Graham. I met him through a couple of inliner guys that live near me. I guess he collects them and rebuilds them. A bit pricey, but I really wanted them. If I was building another engine, I would get some zenith carbs from Vintage Auto Parts. Even Ed says they flow better than the strombergs.

The big thing about the strombergs is they don't leak.

Bill

Bill,

Sometimes it's better to be lucky than smart. I bought a carb that looked like the one on my 40 216. It fit on the 235 stock intake, so I couldn't figure out why the one on the 216 intake fit. I took the carb off the 216 and found it was a 235 carb that someone had reworked to fit the 2 11/16 studs on the 216. So I now have 2 235 carbs when I thought I had 2 216 carbs. I'm sure I'll buy something in the future that will be the wrong parts and will even out my luck.

Thanks for the info, again.

Roy

The 216 used an S.A.E. size 2 flange (center to center 2 11/16 inches).

The 235 used an S.A.E. size 3 flange (center to center 2 15/16 inches).

There are various internal venturi sizes for each flange size by most carburetor manufacturers.

Both Stromberg and Zenith were owned by Bendix. The same engineers designed carburetors with both the Stromberg and Zenith name. This is because prior to about 1920 (don't recall the exact year); both Stromberg and Zenith were independent companies. Bendix made the decision to allow both nameplates, and each division (company, whatever) retained existing customers; although Bendix would attempt to direct new business as Stromberg getting the passenger and light truck, and Zenith getting the industrial and heavy truck. There are always exceptions.

Stromberg and Zenith carburetors with the same S.A.E. flange AND internal venturi made in the same time frame will flow exactly the same.

Jon.