North American Turbocoupe Organization



dual port head
petefreak Offline
Junior Member
#1
i need to replace my head it is cracked. i was wondering about putting on a dual port head i searched and could find anything directly about installing a dual port. i can get a complete head and parts to put it in i just dont know if i should or if i should keep looking for a stock head that might be good.
1988 thunderbird turbocoupe
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86 XR7 5spd Offline
Senior Member
#2
a dual-port head from what application ? ranger ?
David T
T5 / ported E3 / .63 / 35# / K&N
2.5" exhaust w/ cherry bomb
30+ mpg! 8.2 0-60, [email protected] 1/4 (gTech)
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petefreak Offline
Junior Member
#3
oh im sorry i forgot to put that in.
yes it is out of an early 90s ranger
1988 thunderbird turbocoupe
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86 XR7 5spd Offline
Senior Member
#4
i'm pretty familiar with the "SPI 2000" 2.0 97+ escort/focus motor (also the 2.5/3.0 duratec)

the SPI 2.0 is a 2-valve so more similar to the ranger SPI

someoen MUSTVE done this swap ?
David T
T5 / ported E3 / .63 / 35# / K&N
2.5" exhaust w/ cherry bomb
30+ mpg! 8.2 0-60, [email protected] 1/4 (gTech)
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Stinger Offline
Senior Member
#5
I have no idea what you mean by "dual port" because no such head ever existed for a 2.3 Lima engine. All I can come up with is that you are talking about a dual plug head (which would have been on the Ranger). Do a search for that instead and you should find some info. It uses a different intake manifold that doesn't clear the distributor so you'll need to also convert to DIS ignition if you want to use that head.

Oh, and the 2.5/3.0 duratec share nothing with our engines...
www.Stinger-Performance.com

85 TC
85 SVO
86 SVO
87 Merkur
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