What is the Difference between 4.7L 5.7L Toyota Tundra?

Question

I know the power is different. But what else. Which is BETTER!!??

Answer 1

5.7L:
Lightweight engine with 32-valve DOHC with Dual VVT-i
381Hp@5,600rpm
401lb.-ft of torque @ 3,600rpm
all new 6 speed trans.
ULEV II
uses 0w20 or 5w20 oil
4.7L:
271Hp @5,400 rpm
313lb.-ft of torque @ 3,400 rpm
5 speed trans.
32-valve DOHC with VVT-i
uses 5w30 oil
I hope that answer what you wanted to know if not email me

Answer 2

Toyota Tundra 5.7 Engine

Answer 3

The 5.7 is better! 381hp, 401lbs torque. This engine dosen't have to 'work' as hard to pull the Tundra, resulting in better gas mileage than the 4.7. The standard 6 speed trans helps, too. Only a 5 speed on the 4.7. I sell Toyotas for a living!

Answer 4

I concur with Fibba. Additionally, Toyota Motor Sales USA included, with the V8-5.7, one of the beefiest rearends to appear on a half-ton in recent years: the Toyo BD26B, an old-school 260mm axle with drop-out third member and ABS sensors on the outboard ends of 37mm-36 spline shafts; the closest U.S.-made competitor is the American Axle 975 used on some General Motors 1/2- and 3/4-ton trucks, which is hamstrung by a C-clip shaft attachment rather than the BD26B's "Torino-on-steroids" four-bolt end-plate shaft retainers. Same applies to the not-much-weaker Toyo BD24B 240mm axle used with the lesser engines.

If you plan on serious off-roading, I definitely recommend the 5.7 with the Towing Package, as its 4.30:1 axle gears are already supported by Currie Enterprises; the HP9 solid axle, which can be ordered with 4.30:1 R&P and any of five diffs (including Eaton's Detroit Truetrac, Electrac and Locker, and the ARB Air Locker), makes a tougher-yet front axle than the Toyo AS22-based IFS. Currie is probably tooling up to support the 5-on-150mm lug pattern used on the Tundra.

Answer 5

You want the 5.7L. Go drive one of each and you'll see why. Plus the 5.7L gets better gas mileage due to the 6 speed tranny vs. the 5 speed with the 4.7L.

I'm getting my new Tundra in January and I can't wait.

Answer 6

4.7 has been around a while in the toyotas, Its a proven good engine. Also has better fuel economy than the 5.7
5.7 should be as reliable but they are to new to know if they be as good. Much better power than the 4.7
If you dont need to haul heavy loads the 4.7 will be plenty and will last forever.

Answer 7

I wouldnt get the 5.7L just yet Toyota is having a TON of problems with the truck:

Tailgate
Crankshaft
Transmission

etc, etc, etc