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727 pump modification

Posted By: TrackPack

727 pump modification - 02/12/19 12:15 AM

Looking at converters for a 727 torqueFlite. Some say front pump modification required. What's this modification about?
Posted By: John_Kunkel

Re: 727 pump modification - 02/12/19 12:36 AM

Here's a pic of the common pump mod, amounts to machining the area around the seal. The sloping cut is done at an angle of 25°.

Attached picture Pump Mods.JPG
Posted By: Cab_Burge

Re: 727 pump modification - 02/12/19 02:46 AM

the problems your bringing up is on mainly 8 inch race converts, maybe it is on some 9 inch also confused
As John has posted you may need to do some grinding or machining on the pump housing to clear the converter sawzall
Posted By: TrackPack

Re: 727 pump modification - 02/12/19 04:57 AM

I see, clearance for the smaller diameter converters. Thanks guys.
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