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52 Special distributor


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Replaced my points distributor with an HEI unit and noticed the factory distributor has a notch milled on each side that fits down into the block. Shows good oil pressure without the notches and rockers oil good so wondering why they were there. Previously ran an HEI for thousands of miles with no notches and no problems. Anyone know the reason for the notches?

Edited by mcdarrunt (see edit history)
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  • mcdarrunt changed the title to 52 Special distributor

Birthday Brother, my thinking is that is the "oil path" for the cam/oil pump gears.  Notice they are not even, one being lower than the other.  Both have a hole drilled into the center.  The higher one, I believe, intersects the main oil galley.  Oil enters the hole, travels through to the shaft , then down to the lower hole , exiting to the gears. 

  Betcha if I am wrong someone will correct me!😁



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