Holley 1940 Question

[LaGrasta]

that's just what my carb looks like, with the absence of the SCV. The port area is there, but blank.

 

[Bort62]

that's just what my carb looks like, with the absence of the SCV. The port area is there, but blank.

Exactly. My 1100 is the same way.

So its not that Bengoshi's SCV is missing in the sense that someone forgot to install it - but it is missing in the sense that he does not have provision for it. As such, he has a mismatched carb and distributor.

Ditch the LOM and go DII.

 

[MIKE/ILLINOIS]

I've got 2 1040's, one is NOS and the other is a used one. Both have the SCV valve in them. The 1940 was NOT a production carb. In other words it was never installed on vehicles as original equipment. It was designed and sold as a replacement carb for the 1100, therefore it was designed to work with the SCV. It came in 2 bore sizes, 1-7/16" and 1-11/16". Mine are the 1-7/16" models. I think the larger was for trucks and Econoline vans, etc. I have to agree, the picture show the port without the SCV.
Mike

 

[james singleton]

Bengoshi2000 & Others, My carb looks just like the picture of Bengoshi2000's carb, but mine has the SCV in place! My carb is just like the drawing that is also shown! I bought this carb back in 1980, while on a trip to the State of Washington, and the stock carb started acting up on the way up there (from Calif.). My Dad and I had just put a new/rebuilt 200cid in my 64' Econoline, and "yes" this is an aftermarket carb; not a factory carb. The instruction sheet that came with this carb says "MOTORCRAFT" in big bold letters at the top of the instruction sheet, but I am pretty sure this is a Holley 1940 carb that was an aftermarket carb. If I get a chance I will try and post a picture; and also check out the throat size of the carb to see if it is the 1 & 7/16" or the 1 & 11/16" model! Jim

 

[Anonymous]

Yup, you guys were right. My carb has the casting for the SCV, but no SCV. I guess that will teach me to be more careful regarding items installed by a PO. I guess it's time to go carb shopping.

One last question, how does the Holley 1946 compare to the Autolite 1100? Is one harder to acquire? Does one provide better performance or economy?

Thanks,
-Chris

P.S. Yeah, I do intend to stick with a SCV carb and LOM dizzy, despite the advantages of a DS II and better carb.

 

[bigcatchdaniel555]

i had the same problem you do a 1940 with no scv on the car for 15 years with the originil dizzy and it ran ok with some pinging issues. However i can assure you which ever carb you go with you will notice a difference in performance and economy. I am in florida and every local parts house like advanced auto zone bennett napa etc. gave me the same crappy 1100 they never ran right some too rich some too lean and others wouldnt run after 3 carbs one even had a bent jet with metal shavings in it i turned to ebay and bought a carter rbs flowing 215-225 cfm off a 71 250 this carb along with a new dizzy because my old needed a rebuild has run perfectly the carb is maitenece free very easy to tune and gives great economy the only thing is it has a larger bor 1 11/16 instead of 1 7/16 to fix this i mounted a 1/2 inch aluminum spacer to the carb spacer and it works fine other people just bore the spacer the choice is yours. The rbs is also a little cheaper than an 1100 or a 1940 i got mine nos for 50 bucks.

 

[x21]

I am in florida and every local parts house like advanced auto zone bennett napa etc. gave me the same crappy 1100

Bennett actually gave us the 1940- which they swore was the 'right' carb for my 68's 200. The hardest thing I had to do wto make it fit was to bend the choke tube to make it fit. It actually worked pretty well for the several years I had it on there (in fact its in all the pictures I have of my motor). Recently it started acting up, and I just decided to have the original 1100 rebuilt by a guy my dad found in S FL, and he says its running very well now. Nothing really bad about the 1940 (although I attributed it to killing the engine when I made sharp left turns)- I just prefer having the original carb on my motor (which ironically isnt the original one).