2v to 4v Swap

[davidjpoole]

Is it possible to swap '04 GT 2v heads for new 4v heads such as off of the new Coyote? Or am I just crazy for thinking it up in the first place?

 

[007]

Nope.

The best heads for your engine are Trick Flow Twisted Wedge, and they are not cheap.

 

[Deleted member 38176]

It's "possible", BUT.....

You would need to swap:
upper/lower intake
injectors
rotating assembly
pistons
timing assembly
flywheel
alternator
....and a few other things.

Basically, its a big job and pretty expensive. It's a lot more economical to just drop in a complete 4V motor.

 

[Deleted member 38176]

Also, as 007 mentioned, the TFS heads are insane. They are 2V heads that flow just as well as a lot of the 4V modular heads. Look into those.

 

[wmburns]

FWIIW, I understood the Coyote block to be a completely new block. While it shares a common modular motor mount and transmission bolt pattern, it ends there.

The Coyote block has redesigned square oil return pathways compared to the 4.6. I don't think there's a remote chance that a set of heads designed for the 4.6 would bolt up to 5.0 Coyote (ot the other way around).

 

[davidjpoole]

Thanks for reconvincing me of my insanity. I'll look into those TFS heads.

 

[Jhunter]

You'd be better of buying new engine cost may end up close to the same. You have to redo just about the whole thing.