Rod/Main Bearing Recommendations

[howeitsdone]

Wanted to bump this thread with the above question. I just installed all 6 sets with Assemblee Goo and they were all the flat edge kind. Called Summit yesterday and they checked the package of 6 and said they don't have the cutout. Just trying to make sure I don't kill the motor.

 

Edit: Somehow found this site that explains what that hole is. It’s for Fords but I believe the concept to be the same. Hope it helps someone else in the future. 
 

https://www.thirdgen.org/forums/tech-general-engine/600949-rod-bearing-oil-hole.html

[75sv1]

I would not worry. I have used the non hole ones. No issues. Also, that is what was supplied with my 4.6L Stroker from Bishop-Buel Racing. I was supplied a set with half of the rod with the hole cut out. I kind of took it as a clearance for the rod bolt. There isn't much room there. I am referencing Smokey Yunick's  'Power Secrets", I think. They use to not taper the end of the bearings. So, the forces would be at the bottom mostly. It would collapse the bearing in a bit. Then the journal would catch the edge. Then the bearing would spin.  I don't think you hear about spun bearings as much.

       I did get the DAYCO Harmonic Balancer. Looks good. The elastomer looks to be one piece. Machining looks good. Made in China.  The other one I mentioned is Professional Products Powerforce Damper for 4.0L Jeep 6-cyl  PN 80100.

Also, put some oil on the bearing shells surface that contacts the cranks shaft. I used straight 30 weight SAE oil. A break in aditive would help. GM EOS or Motor Honey, or say Permatext assembly lube. The Permatext was supplied for the 4.6L stroker.