elegant

Thanks Jag. Good point. So if it were not called a Corvette, could be called a ZORA, i.e., after all, Zora Arkus Duntov’s first mid engine was the Chevrolet Engineering Research Vehicle in 1959.

JerriVette

I find it hard to believe 3000 built TT Dohc engines built in bowling green are going to be split between the various cadillacs and also the c8 corvette...



There isn't enough annual volume of the TT Dohc 4.2 engines...

Can't go into the corvette..

1500 units for Cadillac sedans and a thousand for cuv s while the rest used for the derivative of the mid engine corvette along with its traditional 10 speed torque converter automatic..

Just a guess on my part....

Probably some supplier sending over a short annual run of the 3000 blocks to give Cadillac an AMG like product...

Hop fully corvette doesn't get this nonsensical engine.

JoesC5

I know what you are implying, but not coming right out and saying it. That the 4.2L caddy engine will be in a mid engine Caddy, and not in a mid engine Corvette.

I think the argument is about the 4.2L Caddy engine going into the Corvette, which the boss of Caddy clearly said it is not.

JoesC5

What is it about the ME platform that gives it a lower center of gravity over a FE platform?

Chicago1

What if the ME is the caddy halo car? Maybe I'm the only one that thinks the c8 will not be ME and everyone is wrong.

bd377103

You have to remember things like the LSA vs LS9. It doesnt take much to get a different designation between engines, example LS1 vs LS6 ... It doesn't carry much weight to say it's not going into the corvette when all they have to do is change a camshaft profile, manifold, or turbocharger size to give it a different designation.

jagamajajaran

You're not the only one. Go back over my posts the last year and a half or so and you'll see me say the same thing repeatedly. What I'm convinced of is that the 2020 ME is not the 8th Gen Corvette. That said, I'm not convinced as to which name the ME will wear... Cadillac, Chevrolet, Corvette, Zora, or something else.

elegant

Cadillac’s all electric mid engine sports car might be coming, but not for two to three more years, as they are now aggressively shoring up major product holes in their current portfolio. The 2020 ME Corvette will be out at least one, probably two years earlier than the Cadillac’s — that is if the Cadillac’s comes out at all.

Cadillac is now filling out its CUV line, then has other holes to fill, and has announced 21 new products in the next three years, including its halo Escala in 2021 — which could even have a 5.5L up-sizing of the 4.2L announced two days ago.

JerriVette

Cadillac needs to get their investment in bowling green back...

Cadillacs budget to become more successful makes what GM invests in corvettes look like chump change...

Remember a good portion of the c8 and even the hot v TT v8 from Cadillac were designed prior to the GM bankruptcy and the costs for research and design were cast aside...with the bankruptcy...

roadbike56

Yes Jag, you're correct. That would lead us back to the up and down rumor that the ME is a Cadillac. Look, I've got nothing against Cadillac, in fact I've already told my wife the purchase of our last Lexus was a mistake, we should've bought the Caddy. But when it comes to sports cars, Cadillac's recent past performance is dismal at best. Even their last attempt at a high performance CUV/station wagon failed to take hold. Only the CTS V sedan has had some success. Does GM want to put their halo high performance car in the hands of a division with a proven track record that their customers won't buy one? I know GM is trying to boost Cadillac sales, but I just don't see spending all that development money on a division that doesn't deliver in this area.
Not only would putting the ME in Cadillac be a mistake for the ME, but it would hurt Corvette. IMHO, if they do this, Mary Barra needs to dust off her resume.

JoesC5

And what would the bore diameter and the crankshaft stroke be for your magical 5.5L that will be a derivative of the 4.2L engine?

JerriVette

I prefer the ease of getting parts that are shared with the rest of the Chevy lineup..

Low number production of 3000 units as stated for the 4.2 TT v8 are better left to the Germans...

Over the lifetime of the vehicle where parts become scarce is a royal pain in the butt...

That's why I'm not a fan of exotics...who needs that nonsense.

I'm sure there will be offshoots that land in GM s trucks and that would make for a nice high output motor for corvettes if need be..

I'll still take the 6.2 ohv engine but I'm sure some variants of the hot v Cadillac will appear over time

All depends what happens to GMs pickup truck powerplants..

Ford went to TT v6 s for its pickup lineup so a v8 might not be needed...

Relegating the ttv8 to low volume high cost status for Cadillac escalas and maybe a torque converter A10 TT hot v v8 for its variant of the rear mid engine platform built in bowling green..

Nice ways to differiate the brands on a single platform.

We might even see aluminum sheet metal for the Cadillac..

The xlr and xlr v were chastised for their panel gaps because of the composite body panels need for expansion etc.

These are qualities corvette owners don't really care about...so it might be a way again to create two distinct vehicles off one platform.

Chicago1

I thought someone on the forum here saw it and they did a model based on what he saw so who knows.

JoesC5

Cadillac just announced the plans for the CT6's use of the 4.2L engine. I'm willing to bet that the 3,000 figure is the starting number of those engines . Since Cadillac has also said they have a **** load of new products in the pipeline, it stands to reason that the 4.2L engine will also find it's way into other Cadillac vehicles in the future. SUV, crossovers other sedans, etc. Hell, maybe even a sports car with a Cadillac crest on the hood instead of a cross flag emblem.

We have no idea what the demand will be for the 4.2L engine if it does happen to show up in a half dozen new products that could just have a lot higher production volume than the CT6.

Maybe, just maybe, Cadillac is trying to wean itself off Chevrolet sourced engines to better position themselves to compete with the Germans.

JerriVette

Supposedly Cadillac has a new product for release every six months for quite a long time..

I'm sure your right Joe...the separate engine has been requested by JDN to differiate these vehicles from other GM brands.

Walter Raulerson

I hope I'm alive when these models show up. Matter of fact I hope I'm alive when then FIRST MODEL shows up

johnglenntwo

C8 OHV Z51(comparison #s), and C8.R OHV, minimum; Electric cars have me a minimalist on motors. Autonomousness and the 720s's aero/ venting has me backing off, period. All bets are off!

trumanjd1

I have been told by a reliable source from the Tonawanda Engine Plant.... that the power plant is currently being assembled there. Seems to be slowly leaking out as the excitement grows ...and curiosity continues...
source has always been reliable in past with different projects that have sourced at this location.

jma242

I 100% believe this is correct but I don't think they threw the C8 design out. At least not completely. I was just thinking about this last week. I remember the piece about GM having an internal competition for designing the C7. This was in late 2012 or early 2013 I think. It seemed odd to me at the time since we knew the C6 was becoming long in the tooth, sales wise, and the C7 should have been a design lock by then.

If you go back to some of Ed Welburns' interviews, from when he retired almost two years ago, he seemed to already know and be excited for the C8 over his own baby.

dcbingaman

Actually 3000 Cadillac DOHC 4.2L TT's engines for the CT6 V-Sport model in 2019 sounds about right.

2020 is another year.....and production of GM DOHC 4.2L TT's may be more like 17,000-20,000, depending on what platforms this engine finds its way into. It could also be built in Tonawanda, once the automated processing is worked out.

Has anyone besides me figured out that a V-10 version of this engine would displace about 5.5L ????