340 Engine Shake

plumkrazee70 said
Good to know on the crank. I thought it would have to be cut. And I thought .030 was the most you could go. What I'm struggling with is buying another set of pistons and machine work for .060 over. The bearings, no biggie that's cheap.

My mind is instantly going towards a junk yard 5.9, re ring, bearings, upgraded cam and ede aluminum heads. Selling my brand new Edelbrock aluminum heads and my la air gap to fund the ede magnums and intake. And Use my la front accessories with the FItech on top.

In my mind that is the cheapest quickest way to get this thing back on the road. It's not a numbers matching car and far from original.

You can turn your rod throws down to SBC small journal which is 2.000 inches (nominal). Or Honda journal size which is 1.885 IIRC (nominal).

If you could get .040 or .050 under bearings you can turn the crank that far. The issue is they’d never sell many of them because most don’t know you can go that far or further.

Back in the “day” undersize bearings all had the same size steel backing. They just made the overlay thicker. I was told there was issues with overlay migration and the like.

Now they use thicker backing and keep the overlay the same thickness across the under sizes.