LS4 or N* swap?
I am about tired of putting pistons in the twin-charged Bonne. I know I need to build a real engine, but b/t pistons and rods, machine work, etc, I could ditch the twin-charged project and swap in either a N* engine (I have one) or a LS4 (I don;t have one).
The car is already set up for the N* transmission, so that one would be easy, but the 5.3 will work better with the turbo I am running on it now. Really, either engine would respnd well to the turbo I guess. The N* is not a big (4.6 vs. 5.3), but might get better gas mileage AND has a higher power potential due to the 16v heads. I would guess weight would be about the same.
What do you guys think?
1988 Grand Am SE 2.0 Turbo
1996 Bonneville SSEi Twin-Charged