exhaust system questions!!!!!

[kfish]

the 3100 and 3400 is a 60* v6, isnt the 3800 a 90* v6? o yea...TOTALLY THE SAME MOTOR right?

[matt5112]

the 3100 and 3400 is a 60* v6, isnt the 3800 a 90* v6? o yea...TOTALLY THE SAME MOTOR right?

3100 is based on the 2.8L Chevy v6 from back in the day.

The first engine in this family was introduced in 1961 with Buick's 198 cu in (3.2 L) engine, the first V6 in an American car. Because it was derived from Buick's 215 cu in (3.5 L) aluminum V8, it has a 90° bank between cylinders and an odd-fire firing pattern that include the two 'phantom' cylinders from the V8 pattern.

The General Motors 60° V6 family of engines began with the 1980 Chevrolet 2.8 L V6 and continues to be produced today (if one doesn't count a larger block casting with larger bore center and new cylinder heads). Its use in the X-body cars leads some to refer to it as the X engine.