Does anybody make any aftermarket parts for a 3.8 G body? Not interested in visual stuff, rather something subtle yet can squeeze out a few more ponies from this choked 3800. Hopefully a header-back and/or 4 bbl carb. A shift kit would be nice too, though from what I read the THM-200 3-speed has a ...

The engine bay looks like it can hold a lot of motor. But can the stock transmission/drivetrain handle a 350?

Any ideas? Maybe a carb kit or header-back?

Or drop in a 350 and call it a day?

Oh yeah, she gets plenty of attention. My grandfather babied her. Hasn't seen snow since 1992. I only wish she had a little more power.

I didn't expect there to be much. I guess an engine swap would be the only real alternative?

Pretty good write up I must say. I would like some more info on older generation engines, as I drive an '86 carb'd 3800 that desperately needs power. What are my options?

I too would be interested in a tach. The clock is cool retro but I'd rather see what my engine is turning at.

Hello gents, beautiful day to be alive. I'm a Canadian G5 owner that's driving my grandfather's old '86 Bonneville. The G5 is currently out of commission due to me taking my sweet time with a supercharger install. The Bonnie's been in the family since she rolled off the showroom floor and I ...