Originally Posted by Cab_Burge
How much clearances did those rod bearing have originally? What brand, weight and type of oil?
Some of those shiny ones worry me down work
Same thing on the #1 and 2 main bearings shock down twocents

oh?...they are not ideal for sure, but really that bad you think?

1) MAINS (B - means Block, C - means Cap)
1 - 0.0037
2 - 0.0037
3 - 0.0035
4 - 0.0034
5 - 0.0034

2) RODS (R - means Rod, C - means Cap)
1 - 0.0018
2 - 0.0023
3 - 0.0018
4 - 0.0024
5 - 0.0018
6 - 0.0025
7 - 0.0018
8 - 0.0023

I used a high volume oil pump (not high pressure), and ran 10w30 oil (VR1) the last three seasons and 10w40 Delvac earlier on.

Oil pressure was always good.

The mains were SealedPower 3/4 grove 120M (which had that flat non-zinc finish, so it looks a bit green/brown in the pics, you can see it clearly in #3), and rods were SealedPower 8-2130CP10 (with the zinc plating that still remained on some of them), with the crank being 10/10.

If anything I would say that the rod bearings show more wear on the ROD side of the bearing as opposed to the CAP side, therefore in my amateour way of thinking that'd be a result of not enough oil film during the power stroke??? maybe detonation??? (i'm fishin' here...lol)