Doug only the uppers are grooved, I don't think you can purchase them fully grooved any longer. But I whole heartedly agree with Doug, I like the Clevite 77 bearing, its a very tough bearing. The one drawback is they don't have the embeddability that other bearings do, so there is a greater chance debris will score your journals. The solution is to keep the oil & filter changed regularly.
Your friend on the DIC
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.