DOHC Heads

mike67 · 10-08-2007, 01:12 PM

Will DOHC heads off of a '98 cobra engine fit on a '98 SOHC GT block?

Tape · 10-22-2007, 08:19 PM

Yes, all 4.6 heads will fit all 4.6 blocks

collinjay71 · 11-01-2007, 06:04 PM

all heads are interchangeable but you will also need all the diffrerent covers, intake manifold, throttle body . I think that the timing chains are even interchangeable but the DOHC uses a polished chain. I'm not sure what your compression would be with the 98 pistons, but i'd check into it.

collinjay71 · 11-15-2007, 09:13 PM

98 cobra heads have a 52cc chamber and 98 gt heads have a 51cc chamber so your compression would drop very slightly.

10-08-2007, 01:12 PM	#1 (permalink)
mike67 Registered Member Join Date: Jul 2007 Location: Centre, Alabama Posts: 2	DOHC Heads Will DOHC heads off of a '98 cobra engine fit on a '98 SOHC GT block?

10-22-2007, 08:19 PM	#2 (permalink)
Tape Registered Member Join Date: Oct 2007 Posts: 11	Re: DOHC Heads Yes, all 4.6 heads will fit all 4.6 blocks

11-01-2007, 06:04 PM	#3 (permalink)
collinjay71 NOS Pony Join Date: Mar 2005 Location: Regina SK Canada Posts: 22	Re: DOHC Heads all heads are interchangeable but you will also need all the diffrerent covers, intake manifold, throttle body . I think that the timing chains are even interchangeable but the DOHC uses a polished chain. I'm not sure what your compression would be with the 98 pistons, but i'd check into it.

11-15-2007, 09:13 PM	#4 (permalink)
collinjay71 NOS Pony Join Date: Mar 2005 Location: Regina SK Canada Posts: 22	Re: DOHC Heads 98 cobra heads have a 52cc chamber and 98 gt heads have a 51cc chamber so your compression would drop very slightly.

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