Any one interested in the oiling mods I did?

Well, I am not questioning anybody's ability, practical experiences or knowledge.

I was having a hard time understanding the reason for the cross tube. I didn't quite agree/understand the blocking of the passage that feeds #1 main bearing from the Right lifter galley. Why would you want to block off that passage and feed the #1 main from the Left lifter galley? (don't answer that) I can agree with all the other mods that GJ is doing and I will be doing them very soon as well, hopefully this weekend, if I can find the long bits, I thought I had them when I did my BB, but they are no where to be found.

Anyways, I spoke to a gentleman named Sanborn from Moparchat. He use to do circle track racing for about 30 years running the small blocks 8,000 RPM and higher with no failures to the bottom end in regards to oiling. He knows his SB stuff, he is an engineer with lots of racing experience. He specifically stated NOT to block off the passage TO #1 main, but rather block the passage FROM #1 main to the Left lifter galley. The cross tube is to supply oil to the Left side for the hydraulic lifters only or for light lubrication for the solid lifters if you wanted to. It has nothing to do with feeding the #4 main. If you are running a solid lifter cam you can eliminate the cross tube, splash lube will lube those lifters. That is what I did with my BB and after 5 years no problems (Knock on Wood).

With the other mods that GJ mentioned and blocking off the feed TO the Left side allows for more oil to the mains and rods. This I believe, as it makes more sense to me. By blocking off the Left feed from #1 main, the main does not have to feed anything else besides its self and the one rod bearing allowing for more oil and no lubrication failure. Also when using the cross tube the fitting must not protrude into the oil galley. Test fit and cut some threads off if necessary. Install the fittings where there is the most material, they don't have to be in any particular spot on the oil gallies. I will be RED Loctite-ing them in place.

One other very important point was the oil holes in the bearings. They need to be slotted/elongated to line up with the oil holes in the block. This gives more dwell time for the oil to pass through and getting more. Actually Direct Connection used to sell bearings that had the slotted oil holes for this very reason, until they stopped with the Kit car program.

Circle cars are at high RPM all the time, unlike drag cars that might be there for a second or two. If these mods work for them, they will definitely work for us.


GJ is doing a great job with this post and I hope everybody appreciates his efforts for sharing and showing pics, I know I do. I appologize if I was being a pain in the ***.

So THANK YOU Guitar Jones, I appreciate your efforts. If it wasn't for this post our SB would have gone back together in stock oiling form.

Now get back to posting on here GJ, the rest of us are waiting.

Thanks
onig