402 stocker engine

[Jrh5220]

Originally Posted by Alan Nyhus

While the #401 heads are notorious for poor oil drain back, the haze from the lifter valley area (coming up from the crank case) doesn't fit with that either.

Tough to diagnose stuff like this long distance. If the leakage numbers are in fact fine, the dyno is where you'll find the answers.

Al it’s not like I havent done this before ,the heads are 291 cast iron they have never been on any motor but this and a427 I ran. Matt hone it last time I followed his recommendation on assemble. I upped the oil ring from 12 to 14.5 no help. It does look like an oil temp problem but what is causing it ?.?the only time I have seen this it was the cam going flat.Its not.