[Formulajones]

Originally Posted by kingbuzzo

Would rings be the issue if she only blows when you hit it hard?

If its rings, then a minor top end rebuild is in order?

Yes it very well could be. Like I mentioned back on post 8 I'd be doing a leak down test if it were mine. It's the only real test that will tell you the health of the engine inside and pinpoint where any problems may be.
Like I said, typically when you have blowby with oil pushing up through the PCV and crank case vent, it's a ring sealing issue. Not always, but typically. A leak down will give you a better idea.

If that's the case, it's really not a minor rebuild either. Short block will have to come apart. At a minimum a hone and re-ring will be needed and when I have them down that far it's steam rolls into just doing the whole engine and gets expensive quickly. If it has a bunch of miles I almost always find cylinders out of round, an overbore needed, new pistons.........you get the idea.