Someone from here sent me a modded tube. Bbuttermore? I installed it heck almost 3-4 years ago. No problems yet.

That'* a big problem with the NA engines. New aluminum upper intake manifolds corrects that problem.

what year did they chg the intake to aluminum ?

That I'm not sure of.

Replacements are as follows.

3400-->3500
3800-->3900

Wonder if its basically the same motor the 3900 the same as the 3800, wonder what the diff is ??

correct me if im wrong but isnt the 3900 a 60 degree V6 and the 3800 a 90 degree V6

The newer GM V6s are OHC engines, whereas the 3800 is a pushrod engine.

i just dont think it was that good of an engine after so many years...

few common problems as LIM gaskets and head gaskets.. also not that efficient..

i mean 3.8L making 200ish hp and 3.8L *.c making 240? it was good back in 97 but not 12 years later..
where everyone else is running 280-300+ hp in 3.5l engines N.A

also the new 3.8L III *.C GPs was making 260hp were the CTS and few others are making 300hp+ out of a 3.6L engine and better mileage and again.. N.A not *.C

I wondering if this a 3.8 prob across the board? Ford'* 3.8 has the same problems.Sounds like it is.