Which motor is da fastest outof a 357 Chevy or olds 350 rocket?

Generally, a properly built 357 Chevy will be faster than a similarly prepared Oldsmobile 350 Rocket. However, this isn't a guaranteed outcome. The final speed depends heavily on many factors beyond just the base engine:

* Specific engine build: The internal components (camshaft, pistons, heads, intake manifold, etc.) drastically affect power output. A highly modified 350 Rocket could easily outperform a stock or mildly modified 357 Chevy.

* Transmission and gearing: The transmission and rear-end gearing significantly impact acceleration.

* Weight of the vehicle: A lighter car will be faster with the same engine.

* Aerodynamics: A more aerodynamic car will be faster at higher speeds.

* Driver skill: This is a major factor!

In short, there's no single definitive answer. Both engines are capable of significant power, but the 357 Chevy generally has a displacement advantage, giving it *potential* for more power. But the actual performance depends entirely on the specific setup of each engine and the rest of the vehicle.