Intermittent crankcase pressure issues

teringer said
alright this has to be said you need to start all over pulling the engine and taking it back to the machine shop and have it re honed the cylinders wont reseal unless they are round the rings you used are wrong and because you didn't file fit them to the cylinders they are not round it shows where they were butting together from no ring gap clearance .never saw a set of rings for kb pistons fit out of the box had to fit them all .you need at lease .024 gap when using kb pistons.

I had to take my street-engine down too, for tight rings. I thought the pistons were too tight, and took the bores out another half. I put a new set of file fits in for good measure. One of those or both,cured my problems. PITA but you learn as you go I guess. That was just the first of several tear-downs. I heard that thought! ; yes, maybe I just was a slow-learner,lol. In any case, that was 18 years ago.