RE: {Chrysler 300} 1964 Torqueflite

Hi Dan,

I was thinking more along the line of modifications for longevity rather than increased HP.

Things like:

1. The recommendation to decrease the input shaft end play to 0.016 - 0.034 inch. (Hemi Anderson)

2. Add an Oil Groove to the Rear Output Shaft Support as many stock units display galling.

3. Use an 11/32-inch end mill to elongate the slot on both sides of the stator support oil feed hole.

4. Use 5 clutches instead of 4.

5. Use billet servos in place of the cast units.

Of course, new sprag’s and new oil pump gears and the best friction material and plates I can fine.

Not looking to make the shifts much more then stock. Perhaps 300K RAM specs on the governor.

I used to have a complete write up from George in the 1980’s with a list of good, better, and best upgrades for spirited street driving of a 300 Torqueflite, but I will be darned if I can find it.

James

From: Dan Plotkin <dplotkin@xxxxxxxxxxxxxxxxxxx>
Sent: Monday, May 22, 2023 07:10
To: James Douglas <jdd@xxxxxxxxxx>
Cc: 'Chrysler 300 Listserver' <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: RE: {Chrysler 300} 1964 Torqueflite

I defer to Don Verity who routinely rebuilds these units. If you intend to use it as a passenger car I wouldn’t modify anything. I have a later model 727 in a 61 Plymouth behind a 440. I chose it for part throttle downshifting ability. It was built using a B&M Hole Shot converter, TCI performance bands, 4.2 ratio band lever and a heavy duty servo spring. These mods help the 727 survive a pretty strong ram inducted 440. The shifts are quick and firm but not unpleasant. Not sure you need any of this in a stock K, but I’ve been happy since 2007 with this.

Danny Plotkin

From: 'James Douglas' via Chrysler 300 Club International [mailto:chrysler-300-club-international@xxxxxxxxxxxxxxxx]
Sent: Sunday, May 21, 2023 3:09 PM
To: Chrysler 300 List Server (chrysler-300-club-international@xxxxxxxxxxxxxxxx) <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} 1964 Torqueflite

My trans will need rebuilding in the 300K. What modifications have stood the test of time in the last 20 years and what modifications are just a waste of money?

I would appreciate folks’ thoughts.

James

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