I'm considering replacing the generator on my 40 pickup with a MOPAR alternator, they look cool. Where can I find an adapter for such a swap?Thanks. Just love driving my flathead pickup! Dave Petree- Ventura,Ca.

 

I don't think i've seen a Mopar alt on a flatty. If your upgrading to 12 volt have you thought about just using a 12 volt generator?

 

Most people use the Delco alternators with internal regulators because there is alot less wiring. I have made batery chargers out of B&S engines and 75Amp or 100 Amp Dodge alternators and the wiring for the regulators ain't fun.

 

The Mopar alternators (later models) require three wires to the alternator,
the earlier with the mechanical regulator two. The reason for this is the later
units regulate output thru both brushes with a solid state regulators, while on the ors one brush was grounded. I alwas liked the Mopar alternators, and while the
earlier unit didn't have the high output the individual diodes made it cheap
to keep going. If you lost half the output of the mechanically regulated
units a piece of fuseable wire and a soldering gun got it back.
I have repaired all of the mfgs. alternators, I can't say any one of them are
hard to do but the Mopar was the first and used for a long time. I have
converted a bunch of farm tractors useing them.

 

Find a copy of Bill Sinclair's book "Thunder Road Flathead" He has a really good section on using alternators from all the big 3 on the flathead, along with how to wire them and fab your brackets. Good luck or pluck what ever

 

I hope Mike doesn't mind, I cut and pasted this from the MSN Ford Flathead '32 to '53 forum:
An alternator alternative that I'm going to explore "real soon now" is from How To Build A Flathead Ford V-8 by George McNicholl, Motorbook International, (c) 2003.

Uses a Chrysler alternator which is much smaller than the GM or Ford, works straight up with tripower (see first attachment [#2]). Parts & pieces in second attachment [#1].

Descriptive text:

"Another method to mount an alternator on the front of a 1939-53 flathead intake manifold is to use a Powermaster #17509 chrome 1961-89 Chrysler alternator, 75 amp, and part of the stock 1949-53 Ford #8BA10153C passenger car generator mounting bracket. There is one slight drawback when using the Chrysler alternator: an external regulator is required. The Chrysler alternator is available from Summit Racing Equipment, part #PMW-17509

"To mount the Chrysler alternator, cut the bottom 4 1/2" of the stock 1949-53 Ford #8BA10153C generator bracket. Trim the edges and grind them smooth. There is a locating pin at the top of the bracket you must cut off as well. Drill a 3/8" hole in the center of the upper part of the generator bracket, approximately 3/4" from the top. The generator bracket is then chromed or painted. A steel spacer, 1 1/2" length x 3/8" i.d., is required for the front of the alternator. A bolt is passed through the Chrysler alternator, then through the spacer, and finally into the hole in the bracket. This is the bottom mount for the alternator. The Chrysler alternator fits securely in the bracket, eliminating the need for any upper braces. The modified generator bracket is bolted to the intake manifold in the normal fashion and the Chrysler alternator is then bolted to the bracket. You can still bolt the stock 1949-53 Ford flathead V-8 fan assembly to the front of the generator mounting bracket."

This is really a neat book, three complete build ups, done by Canadians, all color.

Mike (aka Mike Modified)