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Re: Help: Cylinder Head (archive)
[ Follow Ups ] [ 6-series (E24) Message Board ] [ Msg. Board FAQ ]
Posted by Enviro on June 10, 2001 at 18:07:15:

In Reply to: Re: Help: Cylinder Head posted by Walter OH 84/733i 87/325i Euro635 Soon on June 10, 2001 at 11:29:52:


Maximillian autoparts indicate you can. You will have to adapt, however, the ignition rotor to fit your 83 633csi. BMW offered an upgrade for the standard 633csi wiring. It appears the old wiring caused misses. It consisted of a new coil, newer six series wires, new cap and rotor and a rotor adaptor. Maximillian had BMW rebuilt heads for about $780.00. Check with Paul there. However, the the 1985 six series will fit, providing you upgrade as indicated above. Outside of you needing a cam, you do not need to change the cam, just a new rotor adaptor.


The was a 633 head posted just a couple of days back. You could use the 635 head with the 635 cam, Bavarian (and probably others) sell and adjustable fuel pressure regulator that would give you a little extra gas. You could also add (now or later) a less restrictive exhaust and get a little more air. You should get more torque and more hp without throwing the Mototronic system off too much (oxygen sensor will keep it on track as long as you are pretty close to normal air/fuel mix).

If you decide to go this route, get more detailed advice. I haven't attempted this, but I don't think it would be anything radical.

I need some help. I just took off the cylinder head on my 83 633 and found it is cracked. My questions:

Can the crack be repaired?

does anyone out there have one I can buy?

I have an 85 cylinder head from a 635 I had (bad cam). It seems to be the same head (the head gasket fits perfectly and the holes all seem to be the same). Can I switch out the cam and use this head on my 83?

Other ideas?

Any help is greatly appreciated. thanks
SJ





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