I posted this in the ITR forum, but did not get much of a response.
Trying to figure out what bearings to get.
First, I wanted to identify what was in there. I have all the old mains and rod bearings.
They all appear to have black on the side, but I could just be having a hard time telling black from brown from blue, or whatever.
The block is marked DCCCC, but the D is on the flywheel end (so the orientation of the letters is upside-down from what the helms shows).
I cannot see any letters on the crank, just numbers, and just in the spots listed for the mains.
They are: 14433.
Question 1, am I interpreting this correctly to be D3 C3 C4 C4 C1 or black, brown, black, black, yellow?
I'm fairly certain none of the bearings I took out were coded yellow.

As for the rod bearings, I really do not see any alpha marks on the crank, but maybe I need to use a better light and give it a light cleaning?
All of my rods are marked 23.

Now, for selecting new bearings, I reassemble, and re-torque with plastigauge to determine the clearance, and choose new bearings based on that measurement?
Generally speaking, wear occurs, and therefore you may have to choose some slightly thicker bearings? When using plastigauge, do you do this one bearing at a time, or all at once?

I do not know the history of the current bearings. The previous owner had CTR pistons installed 900 miles before I bought the car. The bearings look like they are in good condition, I see no scoring or marks, or gouges, and likewise, the crank looks fine. I cannot tell if the bearings were replaced or not, so I'm just going to replace them now and not worry about it.

Thanks for any advice!

 

The rods should have a single digit number stamped in the big end side. It's usually a '2'. You use the Honda bearing chart with the rod number vs the number on the crank to determine bearing color. On the mains, the letter closest to the flywheel represents the #5 main journal. So if the letter D is closest to the flywheel, and the number '1' is on the crank at #5, you would need a green bearing. FYI- I have never seen a motor that wanted yellow and black on the mains. The biggest gap I have seen is from yellow to brown. Most engines will only need two colors, three max.

When I put a block together I put in a complete set of green bearings and measure. Then go tighter or looser based on the clearances that I measure. I have the advantage of an extensive bearing selection though. It may not be practical for a builder on a budget to get a complete set of greens