The big difference is that our engine will be a LIGHT V8. Aluminum vs. Iron, guys.

More than likely, the 5.7L will use the same block as the 4.7L, just bored and stroked.

 

In what cars? The Corvette/Camaro/Cadillac V-series/GTO engines are all very light engines. Not to mention, they're not made for trucks, then put into cars. They're made to be put into cars in the first place.

 

DOHC engines are not light weight. Any weight gained from aluminum will be lost right back with DOHC. Its going to be heavy. GM does make some aluminum truck engines too.

 

Just so you know the 5.7 will get 4.7 mileage...that is the key!!

 

also....the stats are limited by DOT regulations and the new tundra will be on the line of those regulations, cab size and such...We just passed FORD....soon toyota will be King!!!

 

So you're saying GM can make a nig dispacement front mounted V8 2door sports car work and Toyota Can't? Come on.... Just imagine the supra with this engine Naturally aspirated, with some of the weight shifted to the back to help balance it out (ie, battery, gas tank... plus the heavier tranny and rear end to handle the power). It would definately work, and haul like none other!

 

I only say that because GM has been doing it for over 50 years, while Toyota has never done it at all.

 

hate to burst anyone's bubble, but the tundra will NOT have a 410hp engine.

it's 383hp. which is still awesome.

DUAL VVT-i, BABY!!!!

 

DOHC engines have fewer parts than pushrod engines, which is what GM uses. Our current Tundra is one of the lightest trucks on the market. I don't think that will change with the new one.

And efocus is right, the new 5.7 will achieve the mileage of the current 4.7, while the new 4.7 will get better fuel economy. Gotta love Dual VVT-i.

 

If toyota puts a Diesel engine in a tundra, they will become the #1 selling automaker. The only thing Toyota lacks is a powerful diesel flatbed with significant towing capacity.

 

Its lighter because its smaller. And pushrod engines are much smaller for the same displacement and they have fewer parts then DOHC engines.

 

And a customer base for heavy duty trucks.

 

Diesel is a great Option for Trucks as the Gas Mileage is much better and a Diesel Engine lasts longer than a regular gas burning one.

 

Don't forget, this new 5.7l is gonna be a 6speed auto tranny. MPG will be close to, if not the same as the current 4.7. Also, the diesel market in the US is only about 18%. Toyota hasn't really needed to produce a diesel due to the small portion of the diesel market. The 4.7l already out torques the domestic guys, which we all know is where your towing capacity comes from.

 

The reason Toyota is not stepping in the heavy truck (3/4 ton +) is that over 70% of light truck sales are 1/2 tons... look at the progression of the T-100... if I had to guess... the evolution of the N/G (next generation) Tundra will be similar...

For those of you in the northwest, there will be a N/G Tundra on display at the Puyallup Fair ( www.thefair.com ) this year...

 

I hope they offer a manual, most of the people I know who are in that customer base want a manual. As for diesels, we're supposed to get them all around 08.

I'd love to rock a Tundra, but I dont do moon rovers.

You hear that Nissan, 410 horsepower, do your magic with the Titan!

 

That's only part of the equation - towing capacity is more a function of frame capacity then engine power. That's what limited the 4Runner's towing cap - the last crossmember in the frame was too short to accomodate a longer tow hitch, which hindered the tow cap.

 

Diesels should start to show up in cars soon too if gas prices continue to stay high. You get kick butt Low End Torque with great mileage. VW makes some nice Cars with Diesels and I think the list will grow.

 

I'm guessing we're going to start seeing a lot more diesels now that the US is switching to Ultra Low Sulfur Diesel. Now that they'll be able to pass emissions, there's no reason not to bring them.

 

Thats my guess too, once the new standards are in place in 07 or 08 there is no reason not to. I think its like 60 % of vehicles sold in Europe are Diesel Powered as Gas prices are so high.