Thread: 51 Flathead V8
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Old 03-18-2018, 06:40 PM   #16
51504bat
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Default Re: 51 Flathead V8

Don't know what you are planning on doing with the 8ba but ff you are planning on installing it in your '39 p/u you'll either need to convert to wide belts (since you said the engine had narrow belt car pumps) so you can run 8rt truck pumps or use the Merc narrow belt pumps which need the u shaped spacer. You'll also need a rear sump truck pan or rear sump Merc pan and either a cast iron truck or Merc stamped steel 1/2 bell to mate the 8ba to the '39 trans. Truck 1/2 bell allows you to run an 11 inch clutch but not the Merc.
Photos show the difference between the narrow belt Merc pump and an 8rt wide belt truck pump.
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