Cracked head

Discussion in 'Mech Tech' started by Gnasha, Nov 14, 2019.

  1. Hi, I thought I'd be proactive (belt and braces) and have my heads crack tested.

    I am now the proud owner of two cracked heads one of which has a crack right through from combustion space to inside the exhaust port, the other has a visable crack from exhaust valve.

    I'm assuming money spent on repair would be better spent on new heads?

    Any recommendations on brands and sources?

    thanks for reading this
     

  2. Type 1 or 4 ?
     
  3. 77 Westy

    77 Westy Supporter

    Type 4 and I think 2.0l.
     
    Gnasha likes this.
  4. 77 Westy

    77 Westy Supporter

    nicktuft likes this.
  5. Yes type 4 2.0.
     
  6. Type 4 2.0
     
  7. Betty the Bay

    Betty the Bay Supporter

    As a Yorkshireman, just to clarify, that's EACH....not a pair, or possibly the full engine!
     
  8. Thats a fully built up pair ready to fit.
     
    Betty the Bay likes this.
  9. Betty the Bay

    Betty the Bay Supporter

    Bargain then !
     
  10. 77 Westy

    77 Westy Supporter

    Using square port heads could add to the overall cost of the engine – I’d change to oval port as you need new heads anyway.

    Cost up getting your cracked square port heads welded, new seats, guides and new valves, springs etc. and compare it to the price of new oval port heads.
     
    Last edited: Nov 14, 2019
  11. 77 Westy likes this.
  12. 77 Westy

    77 Westy Supporter

    Definitely not the same quality as B.A.S but half the price and if Gnasha wants square port heads AMC would be fine – but note the small valves. I’d still change to oval port unless I already had square port heat exchangers and/or exhaust.
     
  13. Problem, I have purchased new valves 41/34 and have the springs to match the SCAT cam, so im looking for bare heads to save some money.
     
  14. Little Nellie

    Little Nellie Supporter

    4B691B53-501A-4D2B-8609-36356E50A0B2.png
    Just put AMCs on mine. So far so good 2 litre type 4
     
  15. I'm hoping to source some bare heads.
     
    Little Nellie likes this.
  16. Anyone on here got a bare head?
     
    77 Westy and DubCat like this.
  17. DubCat

    DubCat Sponsor

    I think I have a pair of square port heads with the larger valves. I'm only about 45 miles from Leicester if you want to pop over and have a look Gnasha? Let me know if you're interested and I'll dig them out and check. £300 the pair. (Postcode PE10 0SG)
     
  18. Yep me and @Barry Haynes both "thinning" on top :D
     
  19. @Gnasha I think you can cut the stubs off oval port exchangers to make them square port, sure someone here did it and was ok... if you go down this line..

    Sent from my SM-T580 using Tapatalk
     
    DubCat likes this.

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