converting to fuel injection (740)

Discussion in 'Volvo 740' started by Ken Phillips, Jul 7, 2004.

  1. Ken Phillips

    Ken Phillips Guest

    Hi all,

    Does anyone have information/experience with fitting a cylinder head off a 2
    litre B200 series engine onto a B230K, a B230 head gasket would keep the
    piston crown/rings away from the slightly smaller diameter combustion
    chamber, but;
    Are the valves smaller?
    Do the valves have the same 'travel' in the head/ ie, are they the same
    length, with the same camshaft lift?
    Would the B200 engine be suitable for fitting a turbo (I have one spare!),
    without messing around with sodium filled valves?
    Assuming I fit a turbo how safe is it to NOT use a thicker head gasket, or 2
    stacked gaskets (this was recommended to also be for using unleaded fuel to
    reduce the burn temperature, but I barely trust one gasket, never mind 2
    Are all the oil/water passages and bolt, studs, stretch bolt holes in the
    same places as the B230.

    Simply put - can just simply install the 2 litre head on my 2.3 litre block?

    I ask this because I would like to install the other head due to it being
    available and having fuel injection ports, I would then fit all the fuel
    injection bits, and possibly this turbo I've got lying around, is this

    You might be thinking - wouldn't it be simpler to just change the engine
    block? Probably it would, if I hadn't already changed all the ancillaries on
    the front of the block to what's normally on a turbo model, plus which I
    know my block, it's sound (for now :)).

    But would it stay sound if I did what I'm proposing?

    I've read that the 2litre FI engine has slightly more HP than my 2.3litre
    carb engine, but, I installed an auto tranny last year, lost some 'get up
    and go' power as a result, and, would like to use the even extra power I
    think I could get from my 2.3 lump, to make my car shift a lot better.

    Any and all advise welcome, sorry for asking so much!!!
    Thanks, Ken Phillips
    Ken Phillips, Jul 7, 2004
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  2. Ken Phillips

    Boris Mohar Guest


    Boris Mohar

    Got Knock? - see:
    Viatrack Printed Circuit Designs
    Boris Mohar, Jul 8, 2004
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  3. I *think* this won't work. There's a bunch of wiring and computer
    differences between a carburetted and a FI engine. It's more than just
    swapping the head.

    I once put a carburetter on a '73 140 which had been FI and it worked
    well for many years. But I don't believe it's possible to go the other

    Chuck Fiedler
    Nothing but Volvo since 1973
    Chuck Fiedler, Jul 9, 2004
  4. Ken Phillips

    James Sweet Guest

    It's possible, in fact it shouldn't be *too* difficult, but I'd look into
    something aftermarket like Megasquirt in this case. It's not a trivial
    project but it's doable.
    James Sweet, Jul 11, 2004
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