black top head on grey tob bottom end

  1. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #1
    can you fit the black top head to a 90 bhp vtr engine?(grey top)
  2. West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL
    #2
    I do believe you can yes
    few different sensors about it but should be fine I think
  3. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #3
    yeah? do you know if its much of a job?
  4. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #4
    also will my inlet and etc bolt straight on? jus tryin to think whether it will be worth it?
  5. Saxperience Addict Joined: Apr 2006 Frome, down deepest, darkest zummerset Posts: 12971 VTRallye
    #5
    if its an early silver top head, then the inlet manifold will be straight swap
  6. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #6
    does anyone know what would be involved in the changeover, eg what i would need to add or remove or modify? it is an early grey top
  7. Saxperience Addict Joined: Apr 2006 Frome, down deepest, darkest zummerset Posts: 12971 VTRallye
    #7
    not alot mate.

    may need to change a few sensors tis about all
  8. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #8
    sensors on the mk1 head? or change the plugs on my loom? will it run ok and idle corect etc with my original set up? if this is the case whats the diffrence between the early grey tops and the black top engines? and my rocker cover should fit the black top head yeah?
  9. Saxperience Forum Bum Joined: May 2007 Posts: 4857
    #9
    Black top heads have a different combustion chamber shape with a smaller volume.

    The black top have a very different cam profile, Different rockers setup and harder valve springs.

    I don't recall off hand the cam bearing sizes in the early grey top but there is a possibility you cant swap the cam from one to another.

    Come to think of it there were different pulley sizes on some TU engines as well so its worth checking if your planning to swap them to.

    Sorry its been years since I have even looked at a early grey top engine.
  10. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #10
    well the head im looking at already has cam and valve springs etc? just needs a pulley and rocker cover i beleive, and any sensors do you know what engines/heads wont fit together? or anyone know for that matter?

    mine is a 2000 mk2
  11. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #11
    tryin to find out what numbers or markings the head iim loking at has but i think it has 2j2 stamped on it if that will help anyone identify?
  12. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #12
    Quote:
    Originally Posted by AXracing View Post
    Black top heads have a different combustion chamber shape with a smaller volume.

    The black top have a very different cam profile, Different rockers setup and harder valve springs.

    I don't recall off hand the cam bearing sizes in the early grey top but there is a possibility you cant swap the cam from one to another.

    Come to think of it there were different pulley sizes on some TU engines as well so its worth checking if your planning to swap them to.

    Sorry its been years since I have even looked at a early grey top engine.
    so if i used the head and cam and rocker set up etc from the blacktop with my grey top pulley and cambelt etc would this be useable? also will my rocker cover fit the blacktop head?
  13. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #13
    anyone help?
  14. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #14
    anyone at all?
  15. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #15
    surely someone must know? its startin to get my head done in lol
  16. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #16
    .bump!
  17. Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta
    #17
    the rocker covers will swap over mate. im not soo sure about the cambelt and pulley. i have all 3 parts spare if you need to buy them
  18. Forum Section Moderator Joined: Aug 2008 Liverpool Posts: 15517 Saxo VTR
    #18
    what will be the advantage of this swap?
  19. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #19
    not so much an advantage just i know where i can get my hands on sum cheap cams and etc brand new but there for a blacktop

    cheers for the input so far but any defo answers would be much appreciated, and cheers sparco tom if i need them i'll be in touch
  20. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #20
    been looking at pics of mk 1 and mk2 90bhp engines and they look like it could be done, obviousley i wnt no for certain till i can get them together and compare, does anyone know of anyone whos tried this? really dont want to be ripping apart my engine to find it wont fit run and have to do it over again?
  21. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #21
    rite, managed to get some numbers of the mk1 head if this will help anyone help me lol 9616169410 2J2, 27/10 and 93 5