Quote Originally Posted by Reptile View Post
If you still want to top swap an engine, and plan on getting a NA engine to do it, get one from the newer GP's, they have the stronger powdered metal rods that will hold up a little better to the abuse.
Exactly why I'm going to top swap mine. I have a hybrid Series II/III. In 04 when GM introduced the Series III, it became the basis for all 3800s in the subsequent model years. So, for Impalas in 04 and 05 which still used the Series IIs, they got a Series III block, bottom end, and heads. Only differences are the UIM/SC, fuel rails, TB, and electronics. Otherwise I already have a Series III in Series II clothing.