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focus sohc to a dohc engine

45K views 38 replies 17 participants last post by  Jimmy  
#1 ·
Has any body ever done a sohc to a dohc engine n a focus. I know it has been done but i would like some info on this change. I hear i will have to change a axle, pcm, wiring harness, and possible the motor mounts? .Any info would be great thanks
 
#30 ·
You enjoy talking down to me don't you Tin? Is this better for you? I know how to type in paragraph format. People complain when I type a post in a paragraph because it is "hard to read" because it all runs together, then you complain when I try to separate the sentences. Can't please everyone I guess. But for you, paragraph posts it is from now on. mmmkay?
 
#33 ·
Hello I'm new to this, So "Sorry" up front..lol
I just bought a 98 sport 4 dr,, It had a bad rattle.. I got it for $275.00,, I checked the plugs and found out the piston broke apart from the rod and destroyed it.. So my Question is.. I found a short block from a 98 ZX2 2.0 dohc,, Can I simply bolt the head from the sohc on the dohc and will it work? I read where the valve stem may of been the problem,, I'll check the head,, Any help?? Thanks
 
#35 ·
What do I need I am going from a 2003 auto SPI to a 2003 auto zetec?

I found this. But someone said not all of it is needed if I am swaping a later year than 2002.5?

Zetec Engine/Trans or reuse yours its the same housing pattern
Zetec ECU
Zetec Body Harness
Zetec Engine Harness
Zetec Engine Bay Harness
Zetec Pwr Steering pump and high pressure line from pump to rack
Zetec AC Compressor. The compressor is probably the same between spi and zetec but we swapped it IIRC.
Zetec AC Lines from accumulator -> condensor -> compressor
Zetec Throttle Cable
Zetec Pass. Motor Mount
Zetec Upper Radiator Hose $25.95 @ Tousley
Zetec Lower Radiator Hose $22.34 @ Tousley
Zetec Upper Radiator Tube (tube mounted to radiator support above fans)$15.39 @ Tousley
Zetec Alternator $142.99+$60 @ Tousley



Let me know,
Thanks
 
#37 ·
Wow, I did that over 2 years ago. What a nightmare. I had it professionally done. Never ran right. I had called a few on here who did the swap. ALL said they had some sort of issues and they just over looked it. NO ONE ever said anything like that in my research or I would have just done a head job and sold it.

In conclusion, if this happens to anyone and their reading it, do a head job and sell the car. Don't go through what I went through.
 
#39 ·
I'm sure it's been done, but at this point it's almost certainly cheaper just to buy a zetec-powered car rather than get a "new" drivetrain, mounts, computer, wiring harness, etc.