BB Olds bearings
 

Is anyone aware of availability of a .050 under bearing for the 455 Olds rods?? If not, is there a suitable undersize that I can grind my crank to and use a different bearing??? Thanks.

Re: BB Olds bearings
 

Marvin, what are you trying to do? Repair a bad journal?

Re: BB Olds bearings
 

You got it, #5 rod took the journal down .004 when it spun, and the crank is already .040 under (.013 offset). I'm getting a lot of negatives trying to get the crank welded..... if I have to replace it, can I use the Eagle cast crank in stock??

Re: BB Olds bearings
 

Nope. Aftermarket crankshafts are not legal in Stock. I know Olds cranks are getting hard to find. At least good ones are. So are blocks.

Re: BB Olds bearings
 

Do you really need .013 on a 455 Olds??? HAHA If it were SS you could offset grind a 425 crank and use 454 bearings.

Re: BB Olds bearings
 

I don't see any real advantage to offsetting by .013, but that's the way the motor was when I bought the car. If the crank needs to be turned .010 or .020 under, might as well get the minuscule stroke advantage, too. (Note: in the Olds, most stock blocks have the pistons about .030 down in the hole, the offset will reduce the amount you have to deck the block)

Re: BB Olds bearings
 

Marvin: When the crank is stroked .013", it is also "indexed" as well, insuring that the rod throws are truly 90° apart. It shouldn't be too hard finding a suitable replacement crank, I'm not hoarding all of them.

Re: BB Olds bearings
 

Good point, thanx for the info, Jim. I think I've got a line on a couple spares (I want to build a spare short block, too. Shure would be nice to just be able to buy an Eagle cast crank.