96-98 3400 vs. 99-03 3400

[96 century]

Some part stores are having trouble finding engine parts for my 97 3400 they only list parts for 99-03 LA1. Is there any reason why the newer parts wont fit? Thanks ~Josh

[korbendallas68]

Nope! :P

The Upper Intake Manifold and EGR are diiferent though, so stay away from that.

[SappySE107]

The valve stem seals changed as well. What part are you looking for exactly?

[96 century]

oh sorry should have been more specfic. Engine inernals, bearings, lifters, piston rings, ect.

[SappySE107]

Those are all the same. The cam sensor changed but I believe that makes no difference (i think 03 was the change anyway).