Just a few questions on the "large" 6 cylinder HEI conversion. Did you completely remove the distributor mount/stop circular boss on the housing and then put the 235 adapter over the slick housing? How did you determine how much to take off the bottom of the shaft that drives the oil pump? Any other tips? Thanks!
Yes, that is what I did. I ground the circular boss and then filed it smooth to get it to the same diameter as the AD stock distributor and used the stock 235 mounting bracket. Then to determine how much to take off the bottom of the shaft that drives the oil pump I did two things. I first measured the AD stock distributor to see what had been allowed there and next to be certain I installed the stock distributor into a block which had a camshaft and oil pump in it to see if I could tell where the OEM distributor gear mated with the camshaft gear (which as I recall wasn't quite as easy as I had hoped it would be) and went with that. It worked fine after I finished...aside from an oil seal I think was missing when I got it. Here is what I wound up with: oil pump driving tang is .454" from the shoulder to the end (the distance between the red arrows below), distributor mounting piece is 4.885" from the tip of the oil pump driving tang up to the bottom of that piece (distance between the two blue arrows below) and the shaft diameter is 1.05" (distance between the other two blue arrows below). Hope this helps. Please let me know if you need more info.
