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B234 Head swap? 700 1989

posted by  t509boy on  Wed Jan 28 13:13 CST 2004
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I was wondering if I could use an 8 valve head on a 16 valve 740 motor. I just bent 8 of the 16 valves thanks to a bad timing belt. Any advice?
Thanks,
Chris








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    B234 Head swap? 700 1989

    posted by  Michae1 on  Thu Jan 29 11:06 CST 2004
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    last visit: Sun Feb 28 08:41 CST 2010
    [RELATED]

    I've got a used 16v head for sale if you're interested. No bent valves.

    michael@badbricks.com

    Lots of pictures posted at my ad here:

    http://forums.turbobricks.com/viewtopic.php?t=15260

    By the way, the B234F manifolds won't fit the 8v head because the ports are oval on the 16v and round on the 8v. There are other differences as well, such as the t-belt tensioner. It's on the b234f block for the 16v engine, and it's on the 8v head too, so you'd have to pick one and figure out how to fit a belt (don't know if a 8v belt would fit).








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    B234 Head swap? 700 1989

    posted by  swede4 on  Thu Jan 29 05:49 CST 2004
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    Just thinking... I have a head with only 6 bent valves so together we have 18 good valves . Probably need some valveguides too since they usually crack when the valves bend. If you decide to get another head I would be interested in the one you have. I would even have 2 spare valves then !
    Does anybody else out there have a head with bent valves that they want to get rid of?








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    B234 Head swap? 700 1989

    uid 14228's pic
    posted by  ladeadhead on  Wed Jan 28 13:32 CST 2004
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    last visit: Tue Nov 6 17:34 CST 2007
    [RELATED]

    I think (though I am not entirely sure) that the problem is that the exhaust manifold is different between the two heads and I have heard that it is quite a job to start changing those parts. I would recommend either finding a new head or a new car.
    --
    'Where's your common sense?' 'It left me when I was 5"







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