3.9 vs 3.6

[Sorin]

Taken from here, with key parts in bold.

Addressing the demands of increasingly competitive automotive markets, General Motors Powertrain launches an all-new family of modular V6 engines that incorporates state-of-the-art features and technology in a package that delivers high performance and refinement.

and

The global V6 engine was designed from a clean sheet of paper to assure multiple displacement, configuration and content possibilities, making it remarkably versatile, yet buildable, in a common manufacturing environment that promotes high levels of quality and tolerance control.

and

From the global V6 engine program start in February 1999, a prime objective was to develop a highly flexible "platform" from which a matrix of possible variants could be developed. The new V6 was designed for true global duty: future variants will power a variety of vehicles worldwide.

Yeah, that Opel thing is 54° while the 3.6L is 60°, so they are unrelated. But this clean sheet also means it's not related to the 3.4 DOHC, nor the 3.5 DOHC, or the 3.0L Saturn DOHC, or any Shortstar, Northstar, Southstar, Eastsidestar, or whatever else.

A 3.2L is supposed to be coming out, which has nothing to do with the 54° Opel 3.2L. Also a 2.8L too. And further, the line is supposed to be expandable to 3.8L and 4.0L.



So anyways, about the 3.9 vs. 3.6. The former is pushrod, the latter is DOHC. The 3.6 and it's variants are designed to be FWD, RWD, AWD, transverse, longitude. Everything basically. The 3.9 is only FWD and AWD, and will no doubt only be transverse. The 3.6 and it's family are currently only for what GM calls luxury applications and high performance applications - meaning Cadillac and stupid crap from Buick. Stupidly enough, not for normal Chevrolet and Pontiac cars. The 3.9 on the other hand is probably going to eventually be whored into everything Chevy and Pontiac make and is from GM's claimed "high value" line of engines (pushrod 60° V6).

[Gemmer]

interesting...I hope it doesnt go bad like fords "modular" engines...where by "modular" they mean "no parts can swap"

[GPXSS]

WES SIYEEEEED!!

[v6h.o.]

well looks like i got

[Sorin]

Oh, and this part, just for shits and giggles:

The global V6 engine family will effortlessly produce power ranging from approximately 200 hp to more than 370 hp; torque output will run from 200 lb-ft to in-excess of 350 lb-ft.

[Gemmer]

Im assuming the 370 and 350 #s are forced induction?

Anyone know if the 3 valve per head version of the 3.9 will be VVT?

[SappySE107]

There is a turbo version of the 3.6, and I dont see why they would drop VVT for the 3 valve heads.