383 Crankshaft journal sizes

[Darkman]

I have pulled the "original numbers matching" 383 from my 68 Charger. I am starting to pull it down tonight and have already ordered things I know I will need (valves, valve springs, gaskets etc), the only things I haven't ordered (as I don't know what size I will need) are the pistons, piston rings and bearings (rod and main) for the crankshaft.

Can anyone tell me the "standard crank" journal diameter (rod and main) so I know what size bearings I need?

I could just order standard sizes but I don't know what they are (and only by assuming that the crank is "standard" - we all know what happens when you ASSUME!)

[oldcarnut]

Can anyone tell me the "standard crank" journal diameter (rod and main) so I know what size bearings I need?

I could just order standard sizes but I don't know what they are (and only by assuming that the crank is "standard" - we all know what happens when you ASSUME!)

My 70 Manual has the crank mains 2.6245-2.6255,  rod 2.374-2.375
The bearings would be ordered after the crank is checked and ground if neccessary by the machine shop.

[frederick]

If you're not going to have the crank machined or checked, check on the back of the bearings.
You're looking for something like: STD, 010, 020, 030.

If the bearings look OK, so no copper showing, flaking or scratches, you might get away with just replacing them.

[Darkman]

So far, the bearings look in amazing shape. I may not need replace them at all! The bores look good so do the pistons and rings. I will hone the bores and replace the rings only at this stage.