[Fattony]

I recently picked up a 6.4 intake manifold I’m going to be putting on my 2012 5.7 soon, I’m running a caned 91 tune, super 10s with reso delet, and a hellcat airbox and lid with intake tube and k&n drop in filter. I ll be just installing the manifold for now and wiring up the actuator a little later when I can afford the rest of what I need.

My question is that the 6.4 intake manifold I got came with the injectors and fuel rails from the 6.4 and I’m wondering if I should use them or stick with my 5.7 injectors and rails, I’ll be using my stock throttle body.

Thanks in advance everyone, I appreciate the help.

 

[HemiLonestar]

Pop your 5.7 stuff in, you would need a custom tune to scale the 392 injectors to your engine and they're overkill for what you have. For perspective: the eagle 5.7 injectors are the same injectors the 6.1 SRT engine used.

 

[Fattony]

Pop your 5.7 stuff in, you would need a custom tune to scale the 392 injectors to your engine and they're overkill for what you have. For perspective: the eagle 5.7 injectors are the same injectors the 6.1 SRT engine used.

Perfect, thank you
At some point I’d like to do a custom tune, would thare be any benefit to using the 6.4 injectors when I get tuned?

 

[HemiLonestar]

Perfect, thank you
At some point I’d like to do a custom tune, would thare be any benefit to using the 6.4 injectors when I get tuned?

Not with a NA 5.7. Sell them or save them for if/when you do a stroker or forced induction.

 

[Fattony]

Sweet, thanks again I appreciate the help