402 stocker engine

[Jrh5220]

Originally Posted by Henrys Toy

Good morning to all,
Since you recently had this engine honed and re- ringed it, have you made any full power pulls on a dyno ?
It'll take a couple of pulls to get the rings to seat. Running at Idle or above Idle won't seat the rings.
Also what shape were the ring lands in ? If they have a excessive amount of play ( up & down) they won't seal either.
If you haven't run this engine on the dyno, I would, then make at least 4 or 5 full power pulls and that should get things in order.
Good luck with your adventure and keep us posted with your results.

Respectfully,
Henry Kunz 1534 H/SA

I have not had it on a dyno, the last time I put it in the car and ran it . Same result smoke out the valve covers. This is the4th time it’s been a part.