I have a 1986 Ford F-250 with a 460 engine, California emissions (lucky me). Anyways, apparently from what I have been able to find out, Holley manufactured a #4180 4bbl carb for this engine with smog equipment, most notably the 4180 float bowls have large vent tubes coming out of the top for hoses running to the charcoal cannisters. I have two questions, first does anyone know where I can locate a new or used front float bowl, mine is stripped at the fuel inlet. This seems to be a common problem with the Holley carburetors. I called Holley and they said they no longer supply or manufacture parts for the 4180 carb once they stopped manufactuing it for Ford. Secondly, is the 4160 carb the same as the 4180 without the bowl vents, will the same rebuild kit work, and instead of rebuilding my 4180 do you know if the 4180 bowls will fit on the 4160. This would allow me to install a new 4160 carb that would be California smog legal, with the necessary smog equip. Thanks in advance for any info related to this problem.

Joe

 

IIRC, you can re-thread that inlet with a 1/4" or 3/8" pipe tap, thread in a nipple for the fuel hose, and run a seperate inline filter after the pump.

 

Tomco used to make a "bowl saver" that was for the Quadrajets. Holley uses the same inlet thread as the Qjet on the 4180. There may be other sources for them. It is a longer threaded inlet fitting that self taps into the potmetal body. BTW, 49 state 4180s have the same bowls. If you install one of these, a piece of advice from someone who installed many of them, do not use the built in filter, cut the line and install an external filter. I used to epoxy the nut into the Carter built Qjets as their metal was very soft and would pull out again very easily. Good luck with it!
Bill Vose (Old School Hot Rodder)

 

No on the rebuild kit. The metering blocks are different as well as the accelerator pump internal circuit. You can use 4160 bowls on it, you just won't have the vent tubes anymore.

 

Thanks LxMan1. Do you have any recommendations for finding a vented bowl or how to fix the one I have. Do you know of any other fix for the California smog legal problem, a different carb that would work, etc. Thanks again for your response and to everyone else for their responses.

Joe

 

A local salvage yard perhaps? Many mid 80's had a 351 4V that used 4180's too.
You may also try some online carb shops like ponycarbs and others.
Have you looked into a reman. carb for your application? You may be able to trade in yours for a rebuilt carb at your local parts store.

Did Holley have any suggestions for a repair solution for your bowl?

 

Unfortunately the rebuilding kit for the 4180 (easily available at the parts store) is about three times the price of a "normal" Holley kit (about $50). I bought it anyway, but like many posts here, I thought I did a thorough job, but I still had the same problems with the carb as before. I broke down and plunked the $400 for the remanned unit from Advance. Works like a charm and the idle/air screws are more accessible. If you must stay smog legal, like me, you gotta pay through the nose, it doesn't seem fair sometimes. But the carb is working like a charm right now. I monitored E-bay for a while and the 4180 comes up from time to time, of course they always say "needs rebuild". Heck, you might find one cheap enough on E-bay just to get the front bowl off of it. This was for an '84 351 HO by the way.

-Tom