Guess the race part
Umm I think I got it now. He had this thing in the oil pan spraying oil up at the connecting rods
No. LOL.
The pipe thread was screwed into the main cap where the oil is coming from the pressure side of the pump to the filter.
The 4 threaded holes had number 4 fittings in them, and each one of them had a hose that connected to a fitting on the bottom of the main cap.
The oil passages from the passenger side lifter gallery are plugged with set screws as is the feed to the drivers side lifter gallery so there is no pressurized oil to the lifters on the drivers side.
You MUST run full groove bearings and you MUST across drill the crank for it to work.
You also need to restrict the oil to the cam bearings to ~.080 or so.
The biggest issue doing it this way is the oil going to the bearings is only filtered half the time. It all gets filtered eventually, but the oil coming off the pump to that distribution block is unfiltered.
And, I don’t care who does the machine work or assembly, there is always trash in the oil. Trash from the retainers, from the springs rubbing on each other and just general crapola.
That means the unfiltered oil going to the bearing had junk in it. So I was constantly dropping the pan to keep an eye on how much garbage was getting into the bearings and then changing them out. I think the longest I went on set of rod bearing was 30 passes. Then there was enough foknoid embedded in them that I just changed them. 20 became the number of passes before I changed them out.
The cool thing about that system is no one who didn’t know what was in the pan, had no clue it was in there. It was all in the pan, so nobody could see it.
The uncool thing was the unfiltered oil to the bearings. So I moved that distribution block out of the pan and onto the firewall. I made it out of a 3 inch OD piece of aluminum tube with a .187 wall (IIRC...it may have been .250 wall...that was 1993 so it’s been a while) and it had 5 hoses coming off the bottom of it.
So the main feed from the pump went to the FILTER!!! (I used a System 1 filter) and from the filter to the top of the distribution can with number 12 hose.
The bottom had 5 hoses, one for each main. The 1-4 mains had to go into the pan, where number 5 gets fed from the main feed back into the block.
At the pan I used number 4 bulkhead fittings. On the inside of the pan were four number 4 hoses, one for each main. You could leave enough hose length to drop the pan down 6 inches to get the hoses off the main caps and take the pan off.
The nice thing about the way I changed the system was filtered oil to the bearings and I could (and did) block the internal bypass on the pump and I used an external bypass so I could adjust the oil pressure. And, I could control where the bypass oil returned to the pan.
I hope that makes sense. That fitting in the picture is one way (if you have the right oil pan) to fix the rod bearing oiling issues in a small block MoPar.
I’d never do that method again. I’d do it externally so I could get filtered oil to the bearings all the time.
In fact, I have 2 oil pans that can use that system, in case my brains fall out and I decide that shifting at 8500 is what I want to do again.
