454 tbi????

besides the injectors what are the differences between a 454 throttle body and say a 350 throttle body ?are they the same cfm? i know there the same from a 350 to a 4.3 with different injectors.

anyways i wanna put a 350 throttle body on my 454 can i ?

2 Answers

  • Anonymous
    1 decade ago
    Favorite Answer

    No, you cannot. The stock 4.3/5.7lt tbi is a 530 cfm unit (1-13/16 opening) the 454 uses a 670cfm unit with a standard 2" bore. Though they might physically fit you will limit your rpms to less then 4500 and might lean out the engine.

  • 1 decade ago

    Sorry, no. And the later the model is, the less chance.

Still have questions? Get your answers by asking now.