3.8L BuickV6/914 Conversion, Took my first prolonged ride... Options

[dbledsoe]

this morning. Got into commute traffic to the muffler shop down the road from where I work. About an 18 mile drive, country roads and into downtown Boise... with open headers. (IMG:http://www.914world.com/bbs2/html/emoticons/driving.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/stromberg.gif) that sucker's loud when pulling away from a stoplight. Definitely got the looks from the other asleep at the wheel commuters. (IMG:http://www.914world.com/bbs2/html/emoticons/happy11.gif) Every thing was hot straight, and normal with the engine/drivetrain... but there is some vibration. Must not of got the engine balance quite right. Oh well, just have to get going on building the 4.1L Buick engine and do a better job of it, plus throw more hot rod stuff in that engine. (IMG:http://www.914world.com/bbs2/html/emoticons/beer.gif)

[LvSteveH]

Late model even-fire buicks should be as smooth as any other modern engine. The rumors about vibration are left over from the old odd-fire version in the 70's. I've got a 3.8L that runs very smooth, no hint of vibration at all. Keep in mind that it was balanced properly when built for high RPM use. There are a couple shops that specialize in the 3.8, may be worth working with them to get it just right. The Grand National motor is nothing more than an even-fire 3.8L, having only a stronger crank, and lower compression pistons. Your 4.1L should already have the turbo crank in it. I’ve got a 4.1L that puts out around 250-275hp, should be pretty peppy. Have fun.