I have a 27 block with no hole for gas linkage. How should I put the hole through?
Hey Bill, the membrane right there is pretty thin. I think if you take a big punch to it, it will just bust right out without much fight. It's a "virgin" block.
Bill, for those die hard restorers wanting to use a vaporizer, if their vehicle came with one, 26-27 vaporizer blocks are getting pretty hard to find. I had to have one shipped from Minneapolis, only to have UPS ruin it in transit. Then I had to get one from Montana, and bear in mind, I live in Texas. If you weren't so far from me, I've got a freshly rebuilt short block without the center web that I'd trade you. Blocks without the web are a lot more plentiful than those with the web intact.
You don't have to knock out the web to run a NH instead of a vaporizer. There is linkage that works just fine to make the switch. I would not knock the web out in case you or the next owner of your car wants to run a vaporizer.
I agree with the others. Please do not knock out the block off. The "over the top" linkages are fairly easy to find. They clamp and bolt on, so going back to a vaporizer later would be easy.
I also have a 1927 and am running an 'NH' currently. I went with the over the top of the engine linkage kit as I didn't want to punch the block out between 2 and 3. I will probably run a vaporizer someday, but until then I didn't want to ruin the originality of the block. I'm just lucky the previous owner didn't punch it out. My valve cover doesn't have the hole either.
Can I add to the confusion? While it was probably a swapped block I had a '27 Tudor that had a vaporizer, (I converted it to an NH). It had the hole in the block, the hole in the VC cover and a very old looking gasket without the linkage hole in it. I think I'd drill & file the hole out instead of trying to punch it out.
If I were going to do it, I'd drill it out, but then again, I am against ruining a rare block, particularly if it is a matching numbers block. I'll have to say, Ford must have punched them out, as I have never seen one with a drilled hole that came from the factory.