5.4 heads on a 4.6?

[hayes00gt]

do the truck 5.4 heads fit on the 4.6? if so what else do i need to do to the motor for this work well? someone told me that this is the set up on the 05 gt's, is this true?

 

[CanadaStang]

do the truck 5.4 heads fit on the 4.6? if so what else do i need to do to the motor for this work well? someone told me that this is the set up on the 05 gt's, is this true?

I do believe the 5.4L heads are the same as yours. The 05 Stangs have the 24 valve heads.

 

[Pitch Black]

Why would you want to swap them? They are the same heads as yours

 

[WRXracer]

I think he wants to swap the 24 valve truck heads..

 

[Pitch Black]

In that case, no you can't.

 

[CanadaStang]

I think he wants to swap the 24 valve truck heads..

No can do man

 

[bdcardinal]

the 3v heads will physically fit, however the rest of the parts to bolt onto the heads to make it work would have to be scavenged off a truck. so theoretically, given enough money, it can work. but if you mean the truck 2v heads then they will fit because they are completely identical to your heads in every way.

 

[CanadaStang]

Problems you would run into....Let's see...

Intake, Throttle body (electronic), Upr rad hose, custom exhaust headers, harnesses (elec. & vac), EEC, Clean air tube, Heater return tube and hose, heater supply hose, to name a few.

You could go with a cable operated t/b, but now you have to work out your IAC scheme, as the elec. t/b eliminates IAC components. I'm sure there are numerous challenges along the road to a 3V swap.

This subject has been covered numerous times, and the general concensus is that to date, it's not worth the 40 rwhp. You can get that with 2V cams.

 

[GoBabyVroommm]

Do the truck 2v heads flow more than the factory 2v mustang heads?

 

[Pitch Black]

Do the truck 2v heads flow more than the factory 2v mustang heads?

No

 

[WRXracer]

they are the same heads but designed for better lowend and less top end.. and im talking about the 2v heads..

 

[hayes00gt]

thanks guys appreciate it.

 

[Pitch Black]

they are the same heads but designed for better lowend and less top end.. and im talking about the 2v heads..

No they aren't. Thay are mirror identicles to 4.6L 2V heads. Its the cams and increased stroke that give them that low-end grunt.

 

[CanadaStang]

No they aren't. Thay are mirror identicles to 4.6L 2V heads. Its the cams and increased stroke that give them that low-end grunt.

what he said