Mk3 to Mk2 cylinderhead

1. DanGT Infrequent Poster Joined: Feb 2011 Surrey Posts: 192 TVR cerbera, Saxo VTR

   #1 14th February 2011, 17:56

   Hi all,
   
   Have searched but cant find anything of massive use. Does anyone know 100% what is needed to change a cylinderhead from a Mk3 to a Mk2/1.
   
   So far I have:
   
   Head - complete
   Inlet manifold
   Exhaust manifold
   Downpipe
   ECU
   Engine loom
   Coil pack
   Oil filter adaptor
   
   Is there any other sensors that I need to change in the block and do I need to change the injector rail and injectors?
   
   Cheers,
   Dan
2. user_10176 Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)

   #2 14th February 2011, 18:00

   Sorry but where this mk3 head from?
3. DanGT Infrequent Poster Joined: Feb 2011 Surrey Posts: 192 TVR cerbera, Saxo VTR

   #3 14th February 2011, 18:09

   The Mk3 is the roller rocker one with the 3 plug ecu and cat in the exh. manifold. The Mk1 is the large journal cam and the Mk2 is the small journal cam (with the cat under the car) from I am lead to believe.
4. user_10176 Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)

   #4 14th February 2011, 18:16

   Always though there was only two types of vtr heads though.
5. user_30040 Established Member Joined: Jan 2009 Bridlington Posts: 1496 Audi A3

   #5 14th February 2011, 18:16

   MK3? you sure about that mate? im sure there are only 2 MK's
6. Morgzc Saxperience Forum Bum Joined: Oct 2009 Colchester/Coventry Posts: 2809 92 Mx5

   #6 14th February 2011, 18:26

   Only two mk's but three engines.
   Your mk3 is reffered to as a 3 plug, mk2 is a single plug silver top, mk1 is a single plug black top.
   
   Why would you want to convert the head to a lower powered one?
7. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #7 14th February 2011, 18:45

   it depends which head your wanting to change to..... you dont need half of the stuff you have though lol
   
   youd have been better off with a full engine change for all the stuff youve bought
   
   are you wanting to run a mk1 head, or and early mk2 head?
8. Morgzc Saxperience Forum Bum Joined: Oct 2009 Colchester/Coventry Posts: 2809 92 Mx5

   #8 14th February 2011, 18:46

   mk1 has two heads btw.
   
   Early mk1- Blacktop, ht leads, single plug ecu 90bhp
   Late mk1/early mk2- silver top, roller rockers, coil pack, single plug ecu 90bhp
   Late mk2- silver top, roller rockers, coil pack, 3 plug 98bhp
9. DanGT Infrequent Poster Joined: Feb 2011 Surrey Posts: 192 TVR cerbera, Saxo VTR

   #9 14th February 2011, 19:55

   Cheers for replys, I'm wanting to change from a 3 plug ECU to a 1 plug ECU (basically late Mk2 to Mk1 ) for lots of boring racing related reasons. I haven't bought any of the bits yet just getting a list together!
   
   Sorry for confusing everyone, its reffered to as a Mk3 in our regulations.
10. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #10 14th February 2011, 21:47

    why dont you just fit a whole mk1/early mk2 conversion then, be miles easier then what your trying currently
11. DanGT Infrequent Poster Joined: Feb 2011 Surrey Posts: 192 TVR cerbera, Saxo VTR

    #11 15th February 2011, 09:32

    Well I am in the process of rebuilding a mk2 bottom end. Which I thought were exactly the same as the mk1 so it doesn't make much difference to me whether I have to change sensors/wiring while installing. Just need to know what is different and if I need to modify the car or engine loom or throttle body etc. Cheers
12. circuitracer L-plater Joined: Apr 2012 Kingston Posts: 49 Bmw 335i petrol coupe Nissan 200sx S14 track car

    #12 10th April 2012, 15:04

    dragging up an old thread, sorry.
    
    same question though, building an engine out of some bits we have ready to fit.
    
    Using a mk3 (3 plug) bottom end, with a mk1 (black top) head (complete with its inlet and exhaust manifolds).
    
    Car runs stand alone ecu.
    
    Any problems likely to get in the way of fitting this?
    Will the oil filter/dipstick on the mk3 block be a problem fitting the mk1 head/manifold?
    
    Can these be moved?
    Any other problems in doing this?
13. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #13 10th April 2012, 15:23

    There is no mk3...
    
    You may have to convert to metal oil filter
14. circuitracer L-plater Joined: Apr 2012 Kingston Posts: 49 Bmw 335i petrol coupe Nissan 200sx S14 track car

    #14 10th April 2012, 15:34

    But you know what I mean, mk2 late model (with 3 plug ecu and dip stick through the exh' manifold)