Yard Art
Posts: 71
Joined: Sat Oct 18, 2014 12:24 pm
BD240 Carb Revisited
Still trying to figure out the Holley 1904 carb situation. He mentioned he was unable to use the one off the original SD-240 because the mounting flange spacing was too small - says the manifold on the BD-240 replacement engine is a bit wider. Did some digging as well as asking here and it looks like the two sizes are 2 3/4" or 3" stud-to-stud. That would indicate I need to find a replacement carb with the 3" spacing.
I did notice while looking at photos that the 'throat' or mounting flange part can be unbolted from the bottom of the carb. This being the case - if I found an old beater carb for parts with the 3" spacing, couldn't I just swap that lower throat/flange mounting and use my original carb? Or am I going to run into trouble with intake diameter?
The carb is the last bit I need to get the truck running again but I've had zero luck finding a replacement so far. My buddy wants to avoid trying to swap manifolds due to potential broken mounting stud issues. He's a F.I. guy with virtually no carb knowledge, so I'm trying to find a bolt-on solution.
Any suggestions? Or does anyone have a spare carb laying around that would work? The goal is to get the truck running and driving enough to move around so we can unload and park it up here. I can always rebuild it myself later if needed.