Offenhauser dual carb intake - who has one?

[n1gzd_plymouth]

Can I see pictures?

What carbs did you use?

What did you do for exhaust.

Thanks,

Rebecca

[Normspeed]

Hi Rebecca, I have the Offy with two Carter Ball & Ball carbs. I used the Offy linkage that came with the manifold. Looks plain but it works just fine. I have one return spring on the bellcrank on top of the head, and another on the linkage that joins the two carbs. Angle of the second spring is important and after the photo I ended up shortening the return spring bracket to make it pull down and in towards the motor.

I run no heat riser and no chokes. The motor is a 1953 218.

My exhaust is a split stock manifold. The downpipes go into a collector and there's a single 2 1/4" pipe to the back with a single Flowmaster muffler. Here are some pics.

[n1gzd_plymouth]

Hi Rebecca, I have the Offy with two Carter Ball & Ball carbs. I used the Offy linkage that came with the manifold. Looks plain but it works just fine. I have one return spring on the bellcrank on top of the head, and another on the linkage that joins the two carbs. Angle of the second spring is important and after the photo I ended up shortening the return spring bracket to make it pull down and in towards the motor.

I run no heat riser and no chokes. The motor is a 1953 218.

My exhaust is a split stock manifold. The downpipes go into a collector and there's a single 2 1/4" pipe to the back with a single Flowmaster muffler. Here are some pics.

Wow, that is pretty much what I would like to do. Did you split your manifold or is there someone out there that offers this service? Were the carbs hard to find? Do you like them. I am surprised you can operate without chokes. I think that i would want manual chokes.

I am thinking that I should really overhaul my old manifolds and at least get my car running with what I have before I start spending money on fun stuff but it is really tempting to just do it now. It appears that the offy is bolt compatible with the stock manifold so I suppose I could go that route. Also, I suspect that I could initially use my same one carb and block off the second one just to get it running.

I am thinking that the smart thing to do would be to start stock then modify.

By the way, I just discovered the vintagepowerwagons.com web site parts section. they have some stuff that I did not see anywhere else (such as crank handles, and copper crush washers) and NOS oil pans.

Rebecca

[Normspeed]

I was lucky and found a nice split manifold at an auto swap meet. I did find that the mounting flanges on the new Offy were thicker than the exhaust manifold flanges, probably due to the exhaust being machined to true it up at some time. I had to cut small eyebrows into the Offy with a Dremel so the mounting nuts and washers would sit level.

Carbs are easy to find on ebay, but watch for the correct shape where the air cleaner attaches. Some ebay carbs also have the little dashpot (for fluid drive and automatic trans models) but I think they will work fine regardless. Dashpot carbs have a little screw and spring on the top near the float area. Rebuild kits are available from Rockauto.com or NAPA.

[greg g]

My carters are mounted on a vintage fenton manifold that I found at a meet.

Got my carbs from Geroge Asche in Pa. (his contact ifo is in the vendors section of the main page that supports this forum) He also makes split manifilds both intake and exhaust. Charlie Ackers a member of this forum also provides or will split your manifolds or exchange using your stock as a partial trade for his split ones. His website is rustyhope.com. You can get Fenton cast iron exhaust headers through Tom Langdon's Stovebolt website.

Offy intakes can be found through Summit racing (call them) or Vintage Speed. Both have linkage.

I made my linkage from hardware store pieces and heim joints from a go cart parts place.

My engine is from a 56 plymouth. I run the stock single exhaust with 2 inch ID pipe through a dynomax low restriction muffler.

[Phil Martin]

Why split the manifold then run into single exhaust? Do you gain anything that way? Just never heard of that before.

[Don Coatney]

I am running a George Asche setup with Carter B&B's. For more pictures of his stuff follow this link.

http://smg.photobucket.com/albums/v65/DonCoatney/George%20Asche/?start=all

[Don Coatney]

Why split the manifold then run into single exhaust? Do you gain anything that way? Just never heard of that before.

I think he could only afford one flowmaster:D

[hkestes41]

Rebecca,

Here is mine. Running Carter Webber 2bbls and the linkage from Langdons. I do not have heat to the manifold or the chokes hooked up yet. Runs well and so far in Texas we have only been down to the low 40's in the morning so I haven't had any starting issues. We will see how things go during our 2 weeks of winter.

And a short video of it running through the Langdon cast iron headers, 2 inch duals and 14 inch turbo mufflers.

[claybill]

offy intakes are now 295.00 b n b single barrels are 25+ on ebay. a split manifold is 200 + you manifold. compare prices with mfg items.!!!

bill

most all carter b n b's are the same inside...just a different choke system is all. the 40-41's had a higher aircleaner ledge..preferred. the later 40's had a smaller one. hard to clamp down on.

but they all work. and with our little 218's....... performance.....?? well.!?

bill

good luck and have fun. stock carbs work first tiime!!

[Don Coatney]

Here is what my car sounds like.

http://www.youtube.com/watch?v=w0fh1JUnf_s

[Normspeed]

We will see how things go during our 2 weeks of winter.

But...those are TEXAS weeks:D .

Nice sounding flattie! Now you and Don have got me going, so here's mine: (caution, large file)

http://s95.photobucket.com/albums/l144/nhcarter1/Videos/?action=view&current=e6ceac54.pbr

[n1gzd_plymouth]

Here is what my car sounds like.

That sounds great. That is what I am hoping for. Thanks.

Rebecca

[n1gzd_plymouth]

offy intakes are now 295.00 b n b single barrels are 25+ on ebay. a split manifold is 200 + you manifold. compare prices with mfg items.!!!

bill

most all carter b n b's are the same inside...just a different choke system is all. the 40-41's had a higher aircleaner ledge..preferred. the later 40's had a smaller one. hard to clamp down on.

but they all work. and with our little 218's....... performance.....?? well.!?

bill

good luck and have fun. stock carbs work first tiime!!

The neck for the aircleaner to clamp on mine is pretty large. I thought that I had an older carter but am I mistaken? If I go for dual I suspect that I should make sure that they are exactly the same carb number.

My engine is a 230.

Rebecca

Rebecca

[n1gzd_plymouth]

Rebecca,

Here is mine. Running Carter Webber 2bbls and the linkage from Langdons. I do not have heat to the manifold or the chokes hooked up yet. Runs well and so far in Texas we have only been down to the low 40's in the morning so I haven't had any starting issues. We will see how things go during our 2 weeks of winter.

[

And a short video of it running through the Langdon cast iron headers, 2 inch duals and 14 inch turbo mufflers.

Where did you get the Langdons cast iron headers. What did that cost.

Is that offenhauser intake with that. Is the bottom of the intake where it bolts to the heat riser box just got a plate on it?

Where did you get those valve covers. Those are cool.

You guys have all given me some great ideas. There is no going back now. I am definately doing something interesting and I want a dual 2" exhaust (but I know it won't sound like my Desoto - it will still be cool).

Rebecca

[n1gzd_plymouth]

The neck for the aircleaner to clamp on mine is pretty large. I thought that I had an older carter but am I mistaken? If I go for dual I suspect that I should make sure that they are exactly the same carb number.

My engine is a 230.

Rebecca

Rebecca

You will also noticed that my throttle linkage is different than everybody else. It is a large bar that runs horrizontally across the firewall behind the engine and then a linkage attaches to that on the right side of the engine.

There is a bolt on the top of the head where I figure linkage stuff can be anchored as well. I think that mine is set up like a 36 Plymouth (the way my car was originally) and all later cars had what you guys had. I could convert to that instead if it made converting to dual carbs easier.

Rebecca

[hkestes41]

Where did you get the Langdons cast iron headers. What did that cost.

Is that offenhauser intake with that. Is the bottom of the intake where it bolts to the heat riser box just got a plate on it?

Where did you get those valve covers. Those are cool.

You guys have all given me some great ideas. There is no going back now. I am definately doing something interesting and I want a dual 2" exhaust (but I know it won't sound like my Desoto - it will still be cool).

Rebecca

Rebecca,

Everything came from Langdons Stovebolts http://www.stoveboltengineco.com/acartpro/. Not all his Mopar stuff is shown on line so it is best to ask for the printed catalog.

The bottom of the intake does have a plate that bolts on which has 2 elbows for running water through out of the heater hose to heat the manifold.

The valve covers look good with the engine out of the car. However with the engine installed you can hardly see them.

[greg g]

Check member's Blueskies site for a how to on using a cable throttle linkage setup.

[blueskies]

I'm running a vintage Edmunds intake with a pair of Holley Webber carbs, and Langdon tube headers.

Hit reload of the pics aren't showing up...

I'm also using a Lokar throttle cable, and it completely elimiates all the sloppy factory linkage... very happy with the result. The cable fits the gas pedal arm on my '50 like it was made for it.

I used an old throttle bracket (Mr Gasket part) that I had laying around to hold the other end of the cable at the base of the carb.

Lots of pics, sound clips, and info on my setup at www.50plymouth.com

Pete

[n1gzd_plymouth]

that is awesome. I have definitely decided to forget about my old manifolds and get something more fun (but I will keep them). This will be expensive but not as expensive as I thought (at least for some scenarios).

Thanks again for the awesome pictures. My initial setup won't be nearly as pretty but it will evolve.

Rebecca

[knuckleharley]

I am thinking that the smart thing to do would be to start stock then modify.

Rebecca

I am thinking you are right. Get it running troublefree,and then start modifying it.

[greg g]

Of you or an aquaintence have some fabricating and welding skills, a decent set of exhaust headers can be built using a set of SBC headers. This will require cutting off and sealing the rearmost tube of both sides (mounting the divers side one backward to service the back three cylinders)

I know sounds crazy but take a look, the flanges may need some adjustment but the price of swap meet headers for a SBC is cheap and with some cutting and fabbing they can work.

[n1gzd_plymouth]

Of you or an aquaintence have some fabricating and welding skills, a decent set of exhaust headers can be built using a set of SBC headers. This will require cutting off and sealing the rearmost tube of both sides (mounting the divers side one backward to service the back three cylinders)

I know sounds crazy but take a look, the flanges may need some adjustment but the price of swap meet headers for a SBC is cheap and with some cutting and fabbing they can work.

I like that idea. I have decided to definately replace my original manifolds with something interesting but for now I guess I should get it running nicely with the stuck stuff. I think that I will swap them out next winter.

Rebecca

[blueskies]

Of you or an aquaintence have some fabricating and welding skills, a decent set of exhaust headers can be built using a set of SBC headers. This will require cutting off and sealing the rearmost tube of both sides (mounting the divers side one backward to service the back three cylinders)

I know sounds crazy but take a look, the flanges may need some adjustment but the price of swap meet headers for a SBC is cheap and with some cutting and fabbing they can work.

The Langdon Tube headers are cut down Chevy headers...

The cut off tube is in the back, closest to the engine, and can't be seen when installed on the block. A bit crude, but it works...

Langdon didn't have his cast iron headers available when I bought these tube headers. The issue with these headers is that they are close enough to the block that the valve tapet covers can not be removed to adjust the valves without first removing the headers from the engine. I would rather have the cast iron headers, they are much better IMHO.

Pete