Question For Duke On The New Z06 5.5L DOHC V-8

[Joe L.]

Re: Question For Duke On The New Z06 5.5L DOHC V-8

Joe: I understand your point of view but you will have to explain why the New Corvette V8 has different bore spacing than the
now defunct Cadillac Blackwing Engine. 4.4 inch vs. 3.779 inch. Larry

Larry------

Like I said, I believe it was DERIVED from the Blackwing engine. It certainly is not a re-badged version of the same engine.

[Larry E.]

Re: Question For Duke On The New Z06 5.5L DOHC V-8

Thanks Michael for the response. I think we will agree to disagree. There is no such thing anymore as GM Powertrain Division
Bob Gritzinger
GM has dissolved Global Propulsion Systems as a division, so sign will be changing at Pontiac, MI, engineering center.
Vehicles>Powertrain
GM Motors On Without Powertrain Division

[Michael G.]

[Joe L.]

Re: Question For Duke On The New Z06 5.5L DOHC V-8

Thanks Michael for the response. I think we will agree to disagree. There is no such thing anymore as GM Powertrain Division
Bob Gritzinger
GM has dissolved Global Propulsion Systems as a division, so sign will be changing at Pontiac, MI, engineering center.
Vehicles>Powertrain
GM Motors On Without Powertrain Division

Whether you want to call it GM Powertrain or Global Propulsion Systems, it doesn’t matter because the operation ceases to exist as a stand-alone entity within General Motors.

Larry------


Regardless of what its assigned name is, there is some entity within GM that's responsible for the design and manufacture of powertrains and powertrain components. As far as I know, GM has not ceased the manufacture of engines and transmissions.

[Larry E.]

Re: Question For Duke On The New Z06 5.5L DOHC V-8

Larry: There’s no argument. Last year’s elimination of Powertrain as a “division” is immaterial. The subject was whether the engines were developed by GM Powertrain. They were, and development of both engines was complete long before Powertrain was dissolved. It’s elimination certainly doesn’t send GM back to the days of divisional engine development - the same people will be doing it, and they still are aware of all developments, they’re just not called “Powertrain” any longer, assuming they EVER develop a new internal combustion engine.

Michael>What you say is true for the "run of the mill production car engines" not for Performance Vehicles and Motorsports which is done
with by
New Performance and Racing Center which is controlled by Chevrolet. JMHO>Larry
P.S. They don't Cast the "Bowtie" in the castings for nothing and sold through "Chevrolet Performance"

[Larry E.]

Re: Question For Duke On The New Z06 5.5L DOHC V-8

Larry------


Regardless of what its assigned name is, there is some entity within GM that's responsible for the design and manufacture of powertrains and powertrain components. As far as I know, GM has not ceased the manufacture of engines and transmissions.

Joe: This is true; but it appears to me that "The powers at GM" has given the Divisions a lot more leeway to design the performance engines
to meet their own need and brand them accordingly. JMHO> Larry

[Michael G.]

Re: Question For Duke On The New Z06 5.5L DOHC V-8

Larry, until the mid eighties, all GM divisions had their own separate design facilities, though GM styling did all the Body designs and Fisher Body engineered the bodies (except for front end sheet metal). Engine and chassis designs therefore originated at the divisions and the decisions as to what to design for a given car had a lot of “leeway”. Since about 1989, though, there have not been separate design facilities for each division and design has been gradually centralized.

Today, the Chevrolet, Buick, GMC and Cadillac brands are marketing divisions, that’s all, with all their designs originating in centralized groups. Powertrain designs were also centralized, but under the “Powertrain” name and not initially at the tech center. All engine designs, for some time, like everything else at GM, have been done by a central group, until last year called “Powertrain”. A new engine design today may, in fact be ‘targeted’ at a given marketing division, but it is done by the central group and its technology might be adopted for any use, it is not the property of Division.

[Larry E.]

Re: Question For Duke On The New Z06 5.5L DOHC V-8

Larry, until the mid eighties, all GM divisions had their own separate design facilities, though GM styling did all the Body designs and Fisher Body engineered the bodies (except for front end sheet metal). Engine and chassis designs therefore originated at the divisions and the decisions as to what to design for a given car had a lot of “leeway”. Since about 1989, though, there have not been separate design facilities for each division and design has been gradually centralized.

Today, the Chevrolet, Buick, GMC and Cadillac brands are marketing divisions, that’s all, with all their designs originating in centralized groups. Powertrain designs were also centralized, but under the “Powertrain” name and not initially at the tech center. All engine designs, for some time, like everything else at GM, have been done by a central group, until last year called “Powertrain”. A new engine design today may, in fact be ‘targeted’ at a given marketing division, but it is done by the central group and its technology might be adopted for any use, it is not the property of Division.

Thanks again for response; just a couple points.

GM Authority executive editor Alex Luft asked O’Blenes(GM Central Office) if Chevy was considering selling the 2023 Z06 engine as a crate motor.
Unfortunately, the demand for the new Z06 is already so high that GM is first making sure that those customers will have the first crack at the 670-horsepower, flat-plane crank engine that is the most powerful naturally aspirated motor ever offered from the factory, capable of zooming from 0-60 mph in 2.6 second When GM was ask is the new Z06 motor would be available as a crate engine; IF YOU NOTICE ITS CHEVROLET DECISION ON THIS NOT GM'S. I UNDERSTAND THERE IS A "BOWTIE" CAST IN THIS BLOCK NOT GM. THIS TELLS ME IT IS CHEVROLET PROPERTY AND DESIGN
Whether you want to call it GM Powertrain or Global Propulsion Systems, it doesn’t matter because the operation ceases to exist. Again will agree to disagree. Larry P.S. If your are a parent company and one entity(Chevrolet) brings in 80% of your revenue>YOU TEND TO LISTEN TO THEM REAL CAREFULLY. Will drop this subject for now and thanks again.

[Michael G.]