Re: Main bearings for 359 CID engine

Posted by Fish'n Jim On 2021/8/15 8:09:46

One of those things to check before the crank is cut, aka, Oops! These things take some planning.
From surface, if 20 over is available, I see that the best option => recut
0, 20, 40, 60 is kinda "std." for rework on bearings and pistons. Maybe a more numerous motor might have more repair options. I didn't like taking 40 from cylinder wall on the Cad, but that's what was available. They won't last forever, and probably won't see that much service going forward to be over concerned.
Find a better engine shop and see what they say. Maybe they can check straightness and align hone, maybe not. There are valid reasons why they went away from bigger inlines. Such a long crank may have deflection.
It is possible to add material, flame spray, etc. but not your usual machine shop task and cost. It's a commercial mostly item. Either way it's gonna come out of there again.