The Stovebolt Site Forums The Shop Area The Electrical Bay Horn mounting location

On my '50 3100, the original horn is mounted on the intake manifold. I am thinking of trying to find an original style oil filter for the engine. I know that the oil filter mounts on the intake where the horn now lives. My question is this: where was the horn mounted when an oil filter was mounted on the manifold? Trying to keep everything as original as possible.

Same place.

It requires a different mounting bracket that moves the horn slightly forward of the normal position.

Of course no one sells new ones. They only sell the brackets for engines with no filter.

I purchased a POS horn on ebay that had the correct bracket for $20. I already had a good working horn.

If tt is the same as this one off the net then they should both fit .

Well, if it is that simple, I believe that with some proper thickness plate, a cutting torch, a grinder, paint and plenty of time, I might be able to fabricate one myself. Or, cut the existing bracket and weld in enough flat bar to extend it the proper length. Thanks for the information and pics.

Making a solid bracket might work, but GM put the multiple layers of thin material there for a reason (probably to isolate the horn from engine vibrations.) But a guy could modify the original non-offset bracket to put an offset on it. My offset bracket has some broken layers, so I bought one of the aftermarket ones and may use the two to to make a good one.

The horn on my 54 gmc is mounted on the front driver side of the rad cradle .Don’t know if it is a 54 change or maybe a Canadian difference.I also seen some mounted on the passenger side firewall .I had to move mine to the inner fender from the rad cradle because of moving the rad and the mounting holes covered by the rad .The vibrations from the horn on the inner fender made the inner fender crack all around the horn mount so it needs some cushion to absorb the vibration.

The FAM, which is basically '54 info shows a scroll type horn instead of the trumpet style shown in Otto's posts. The FAM shows the horn mount on the radiator support. Don't know when the horn style (and mounting) changed, though.

Otto, my horn is the trumpet style and the bracket is exactly like the one in your attachment. I'm thinking that a little judicious cutting and splicing in a piece of flat bar of the same thickness would do the trick for moving the horn forward. A wire welder, grinder and paint should do the job.

If your bracket is the "L" shaped one I posted, you shouldn't have to make any modifications at all.

The bracket for engines without oil filters is just straight up and down. The "L" shaped on just positions the round part of the horn slightly forward so it doesn't hit the filter.

I'll take some better pictures from different angles if you want me to. Notice the bracket for the oil filter is slid back so that it contacts the manifold plenum.

Okay, then, I DO have the bracket that is designed for oil filter mounting. For once, I am ahead of the game! Thanks for the heads-up. Since the truck did not have an oil filter, I ASSumed that the bracket would not allow for a filter.