2v to 4v Swap

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davidjpoole

New Member

Jul 31, 2011

2

0

1

Aug 17, 2011

#1

• Aug 17, 2011

• #1

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?

 

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007

Founding Member

Jan 29, 2002

3,287

24

69

Broke

Aug 17, 2011

#2

• Aug 17, 2011

• #2

Nope.

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

 

D

Deleted member 38176

Aug 17, 2011

#3

• Aug 17, 2011

• #3

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.

 

D

Deleted member 38176

Aug 17, 2011

#4

• Aug 17, 2011

• #4

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

SN Certified Technician

Aug 14, 2009

5,892

514

204

Houston Texas

Aug 17, 2011

#5

• Aug 17, 2011

• #5

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).

 

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davidjpoole

New Member

Jul 31, 2011

2

0

1

Aug 18, 2011

#6

• Aug 18, 2011

• #6

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

 

Jhunter

New Member

Aug 16, 2011

68

0

0

Aug 19, 2011

#7

• Aug 19, 2011

• #7

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.