Main Bearings
 

Are all main bearings the same from 305 to 478 and 1960 to 1974? Anyone still supply them new or is NOS the only option?

Re: Main Bearings
 

When you find out, let me know, looks like the sources are dried up and I'm wondering if I will be able to rebuild this block.
Steve

Re: Main Bearings
 

I'm starting on my 478 stroker build and am a little worried about it. Is there anyone that makes custom bearings that could crank out a set or two? I only need the mains as I will be using either Big Block Mopar or Chevy rod bearings...

Re: Main Bearings
 

Main bearings are the same on all displacement V6 engines other than the 1973-74 478M engines, these engines had completely redesigned bottom ends with larger diameter mains.

Re: Main Bearings
 

I've frequently have seen main bearings sets on ebay, possibly try Rock Auto as well.

Re: Main Bearings
 

Rock Auto has been dried up on main bearings for some time. Any other leads?

Re: Main Bearings
 

Sent an email to Thunder V12, I would think that they have a source.

Provided that 702 mains are the same as the rest...

Re: Main Bearings
 

If not keep an eye on ebay type in federal-Mogul 4067M
I hit pay dirt today and bought a .020 under set for $95

There is another set on there from the same vendor https://www.ebay.com/itm/Federal-Mog...AAAOSwupBcv4C7

Hope I did not break rules by posting this link.