Hi.
Got a problem with a 401 nailhead.
The water is going in the oil sump.

We have replaced the headgaskts and the heads have been checked at a shop.
We couln´t see anything, so we put the heads back on and started the car. No water in the oil.
Re tq the heads bolts and took the car for a ride.
The car runs fine, but the water is back again!!!!!
Are we looking at a new eng. blok or??????.
Hope any of you have an idea.
Thanks
Carsten and Lars  (Denmark)  

Here's where you'll find some very helpfull info  V8 Buick.com