I took this to the shop to get bored and they found this crack:'
I think pistons hit valves in this engine before I got it, bad crank sprocket keyway.
This crack is in the 3rd main, working it's way down the oil supply hole and deeper into the block.
Damn!
I don't think I've ever seen that before..
Good thing you have a good machine shop that caught that
Yeah, I never thought of looking there but I guess they've seen it on the chevy V8s.
They saved me a bunch of trouble,.. probably shouldn't complain about them being slow.
