There are several options:
(1) Carter W-1 - 1941~1948 Chevrolet 216 tag numbers 483s or 574s (don't get one of the 684s from 1949). The Carter W-1 is virtually bullet-proof, and has a leather accelerator pump, which is impervious to ethanol contaminated fuel.
(2) Stromberg BXOV-2 aftermarket for 216 Chevrolet part number (stamped on carburetor) 14-22. Also has leather accelerator pump.
(3) Carter YF aftermarket for 216 Chevrolet stamped number 964s. Has NEOPRENE accelerator pump, which will eventually fail if used with ethanol. The more often you use the vehicle, the LESS issues you will have with the pump, and the longer it will last. A vehicle that is only driven occasionally, will have the pump fail more quickly. The issue being once the neoprene has been introduced to the ethanol, AND ALLOWED TO DRY, the neoprene becomes hard and brittle. When the brittle pump is then asked to function, it cracks. Since you live in the UK, if you go with the YF, try to have the seller send you 2 or 3 extra pumps and top cover gaskets.
Please do not fault vendors that do not ship to the UK. The cost is horrible, and during the pandemic, shipping time is unpredicable.
We even had to stop shipping to Canada during the pandemic. One can give the customer a tracking number, and he can track the package, and see that it was actually shipped. But if the customer has not received the package which he may have paid $150 or so for shipping in 3 months or more, one has a VERY unhappy customer!
Of the 3 carburetors mentioned above, parts availability is best for the Carter W-1, as it was original equipment. We have all parts (except castings) for the other 2, but again, do not ship to the UK.
Just to be safe, there are some of the cheaper rebuilders using neoprene pumps for the Carter W-1. I don't think anyone is making them for the Stromberg, but I could be behind the times. Would highly suggest you ask the vendor if the pump is leather.
Jon.
