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  1. #1
    Non-member chipis's Avatar
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    Alpine head swap onto c1j engine block

    Hello, has anyone done renault 5 alpine 1982 manufactured head swap with crossflow onto c1j engine? what kind of problems i can run into doing this kind of swap? Is it worth doing?

  2. #2
    Committee, South East Regional Rep James5's Avatar
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    Re: Alpine head swap onto c1j engine block

    Andrew cooke done some time back and Danny aka dk developments is doing it aswell there is a thread by danny in the project section


    DK's thread

    https://www.rtoc.org/boards/showthread.php?t=3088

  3. #3
    Non-member Penfold aka The Dealer's Avatar
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    Re: Alpine head swap onto c1j engine block

    Didn't ashy also do it back in the day??

  4. #4
    Committee, South East Regional Rep James5's Avatar
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Penfold aka The Dealer View Post
    Didn't ashy also do it back in the day??
    Your right he did

  5. #5
    Non-member Logg's Avatar
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    Re: Alpine head swap onto c1j engine block

    There was this French dudes marvellous bit of engeering.

    https://www.rtoc.org/boards/showthread.php?t=29329

  6. #6
    Non-member gtmatt's Avatar
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    Re: Alpine head swap onto c1j engine block

    Andrew did it with good results ,you have to machine a water pump bracket i did for scoff

  7. #7
    Motech Tony Walker's Avatar
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Logg View Post
    There was this French dudes marvellous bit of engeering.

    https://www.rtoc.org/boards/showthread.php?t=29329
    He makes it look so simple.... whats the answer with the camshaft?

  8. #8
    Non-member Logg's Avatar
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Tony Walker View Post
    He makes it look so simple.... whats the answer with the camshaft?
    I think you use an alpine cam so you can run matching dizzy drive. but if your on coil packs I guess there would be no need unless there's a reason to use the alpine oil pump too.

  9. #9
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    Re: Alpine head swap onto c1j engine block

    alpine cam runs the water pump so it needs one end machining off and a bearing fitting into the other end of the block!

  10. #10
    Non-member Logg's Avatar
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    Re: Alpine head swap onto c1j engine block

    That's just speculation.

    Wish I knew more about all this as I feel valve size is what holds back the C1J the most after the carb and this would be a great solution.

  11. #11
    Motech Tony Walker's Avatar
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    Re: Alpine head swap onto c1j engine block

    Whys the alpine cam needed? will the pushrods/followers on the gtt cam not line up with the apline rockers? or is the exhaust inlet lobes in a different position?

  12. #12
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Logg View Post
    That's just speculation.

    .
    what is?

  13. #13
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Tony Walker View Post
    Whys the alpine cam needed? will the pushrods/followers on the gtt cam not line up with the apline rockers? or is the exhaust inlet lobes in a different position?
    The position of the cam lobes are totally different.

  14. #14
    Non-member Logg's Avatar
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Ashy View Post
    what is?
    My little comment before your explanation.

  15. #15
    Non-member Logg's Avatar
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    Re: Alpine head swap onto c1j engine block

    So Ashy do you need to use a whole Block and head or cant things be built up in a GTT block? How did yours go in it short life?

  16. #16
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Logg View Post
    So Ashy do you need to use a whole Block and head or cant things be built up in a GTT block? How did yours go in it short life?
    I used a gtt block, liners, crank... Gordini cam, pistons & rods, head and rockers etc.

    Heres a gtt v's dini cam



    Mine went well right up until it set on fire

  17. #17
    Motech Tony Walker's Avatar
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    Re: Alpine head swap onto c1j engine block

    What did you do with it then?

  18. #18
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Tony Walker View Post
    What did you do with it then?
    In what way mate?

    Heres an old vid of it on youtube when I first got it running....

    https://www.youtube.com/watch?v=YRkFMlrHkvU

  19. #19
    Motech Tony Walker's Avatar
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    Re: Alpine head swap onto c1j engine block

    i mean the bits after the fire? sell/scrap?

  20. #20
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    Re: Alpine head swap onto c1j engine block

    There wasn't much left, still got the cage




    Notice the roofs missing, the NOS tank blew it off when it exploded

  21. #21
    Motech Tony Walker's Avatar
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    Re: Alpine head swap onto c1j engine block

    was the engine salvageable? or screwed Did you find what the cause of the fire was?

  22. #22
    Non-member chipis's Avatar
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    Re: Alpine head swap onto c1j engine block

    as i see there are one major issue with water pump, to relocate it. as well as custom intake and exhaust manifolds. what about the alpine head thicknes, will we get the same compression ratio as with stock c1j engine head?

  23. #23
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Ashy View Post
    There wasn't much left, still got the cage


    Notice the roofs missing, the NOS tank blew it off when it exploded
    Christ.... nobody hurt I hope?

  24. #24
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by chipis View Post
    as i see there are one major issue with water pump, to relocate it. as well as custom intake and exhaust manifolds. what about the alpine head thicknes, will we get the same compression ratio as with stock c1j engine head?
    Just use the dini pistons as they Are domed, using GTT pistons would drop the cr.

  25. #25
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by DaveL485 View Post
    Christ.... nobody hurt I hope?
    Nah just my pride and wallet

  26. #26
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Ashy View Post
    There wasn't much left, still got the cage




    Notice the roofs missing, the NOS tank blew it off when it exploded
    I can't believe you left the wings.. they could have been reused!
    I've still got the block that was in that somewhere...totally barbecued

  27. #27
    Motech Tony Walker's Avatar
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    Re: Alpine head swap onto c1j engine block

    Strange how the cage kept its shape while the other metal body melted.
    Shape such a great project was lost

  28. #28
    Non-member Logg's Avatar
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Tony Walker View Post
    Strange how the cage kept its shape while the other metal body melted.
    Shape such a great project was lost
    I think that just shows how much stronger the cage is than the shell.

  29. #29
    Committee Member Sparkie's Avatar
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    Re: Alpine head swap onto c1j engine block

    you'd need to put an oil drain at the back of the rocker cover to allow excess oil to drain away. - the gtt engine tilts back slightly, the gordini lump sits straight.

    the c/r of the gordini is about 8.7:1 with the std domed pistons. - as Ashy said, using gtt ones drops the comp ratio considerably.

    one thing to remember is you must fit the dizzy drive BEFORE fitting the head - the hole in the head is too small to fit it afterwards.

  30. #30
    Committee Member Sparkie's Avatar
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Tony Walker View Post
    Whys the alpine cam needed? will the pushrods/followers on the gtt cam not line up with the apline rockers? or is the exhaust inlet lobes in a different position?

    EI-EI-EI-EI = gordini/turbo2
    EI-IE-EI-IE = r5 gt turbo


  31. #31
    Non-member Logg's Avatar
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    Re: Alpine head swap onto c1j engine block

    Quote Originally Posted by Sparkie View Post
    EI-EI-EI-EI = gordini/turbo2
    EI-IE-EI-IE = r5 gt turbo

    I had to read this twice thought it was an old McDonald joke at first.

    Great info lads.

  32. #32
    Motech Tony Walker's Avatar
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    Re: Alpine head swap onto c1j engine block

    Ei Ei O?

  33. #33
    Non-member DK DEVELOPMENTS's Avatar
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    Re: Alpine head swap onto c1j engine block

    Expect to spend plenty of money

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