Model B motor an a model B Motor be installed in a Model A easily?
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Re: Model B motor Yes
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Re: Model B motor My 1929 Fordor has a B motor and transmission in it. Was there when I bought it. The extra 10 horses seems to make a noticable difference.
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Re: Model B motor 2 Attachment(s)
Yes, the Model B motor fits into the Model A using the Model A's engine mounts, but it requires a modification to an oil pan to fit the Model A's flywheel housing.
The oil pan choices are to rework a Model A pan by adding 4 dents in its side to clear the Model B connecting rods plus trimming the rear of the Model A pan to fit the larger Model B rear main bearing cap.The alternative is use a Model B oil pan by cutting-off its flywheel housing. If the engine will have a stock or Model A carburetor, the fuel pump is not required, so block-off the pump's opening in the side of the engine. You can use the Model A or Model B distributor. Use a Model A exhaust manifold and intake manifold. The carburetor can be a Model A or Model B. Starting motors are the same, and you can use either the A or B generator. Optionally, you can use a Model A cylinder head and water pump. Use the Model B radiator hoses because they are a tad longer than those in the Model A. |
Re: Model B motor You can also replace the rod nuts with stronger ones and for-go the adding "dents" to the "A" pan, just modify the rear main radius cut.
J |
Re: Model B motor 1 Attachment(s)
Attached is a picture of my shortened pan. I left a strip of metal on the pan instead of risking a leak. Remember if you run a stock Model A head on a Model B engine you will need to plug the 2 steam holes near the center or they will leak.
Charlie Stephens |
Re: Model B motor Quote:
Bob B has given great advice/info ! I've modified/used both A and B pans on B engines. I like the A pan on the B. Not hard to modify, except for the bumps to clear the B rods. I've always used stronger rod nuts, as recommended by Jim Brierley. They did slightly touch the A pan sides during trial fits ! A bit of work, no matter which path you chose, but worth the efforts. Take your time and ASK if not sure. Good luck |
Re: Model B motor As John says, you don't need to dimple the A pan if you use ARP 12-point nuts, they are stronger yet smaller in O.D.
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Re: Model B motor many thanks to all who replied. Tom
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