I would like to switch over the vaporizer on my 1927 Roadster. Should I get the Holley NH with the swivel top or can I use an NH straight thru
Seems to me the '27 had the swivel top
Check if your block has the hole between #'s 2 & 3 cylinders. it'll make it easier to convert the linkage. Also check the valve cover for the hole. I did my '27 and I had the block hole and the cover hole. The cover gasket didn't have a matching hole but that was obviously no problem. There's an "over the top" linkage set-up conversion available too but I don't know who sells it. I used a standard NH.
I think you can put the swivel top needle on a straight through NH if you like.
You'll also need both intake and exhaust manifolds. Used intakes are cheap & easy to get while straight & decent exhaust manifolds are less common so you may want a new repro.
Here's a thread showing one way to solve the throttle linkage issue: http://www.mtfca.com/discus/messages/506218/556959.html?1437434708
Roger is correct, Randy. You can run the straight bore earlier NH, and fit it with the swivel type needle and its brass holding nut.
Allan from down under.
WHY WOULD YOU WANT TO SWITCH TO THE VAPORIZER? THE NH IS A MUCH BETTER CARBURETOR.
Randy, 26/27 Ts have a swivel on the carburetor needle valve.
Glen, he is switching his car from a vaporizer to an NH.
Look at Langs 6299CL you will need the rod and maybe the clamp on arm. I would give you the part numbers if I was at home and had my catalog.