3800 NA Series 3 performance parts query. (Page 1/1)
lou_dias JAN 03, 10:05 AM
Hi all. My 4.9 is finally ready to be replaced.
I've had a 2004 3800 NA Series 3 sitting in my yard on a pallet since 2016 and that's what I'll be replacing it with...and it will need a rebuild first...of course.

I'm looking for NA performance parts for that motor which came out of a Grand Prix. Ideally - I'd like longer rods with a shorter piston height using possibly a 4.1L bore and a cam. I'll get some head-porting done as well of course.

I'm not interested in boosting this motor. I have a 98 3800SC setup for that already.

I'm just wondering if someone has any experience with this or a website to point me at.

Thanks in advance.

Update:
GM did make a 4.1L v6 from 80-84:
https://reman-engine.com/si...-gm-oldsmobile-buick

[This message has been edited by lou_dias (edited 01-03-2024).]