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M20 24v ?
Posted: Mon Feb 23, 2009 9:36 pm
by cro320
Re: M20 24v ?
Posted: Mon Feb 23, 2009 9:39 pm
by Jhonno
Only 7 heads made iirc
Posted: Mon Feb 23, 2009 11:00 pm
by cro320
probably any of them is in working order any more but just wanted to ask...

Re:
Posted: Mon Feb 23, 2009 11:20 pm
by Blitz
I bet their worth alot of money.
Re: M20 24v ?
Posted: Tue Feb 24, 2009 1:02 am
by Bavarian_Autotech
Jhonno wrote:Only 7 heads made iirc
and probably none in a rhd shell
Re: M20 24v ?
Posted: Tue Feb 24, 2009 1:39 am
by Dave_M3
Seriously cool engine, Suppose it's one M20 that would have abit of weight in the 4 pot-6 pot debate

Re: M20 24v ?
Posted: Tue Feb 24, 2009 6:52 am
by cecotto479
Only if they connect the coil lead.
Re: M20 24v ?
Posted: Tue Feb 24, 2009 12:01 pm
by Fushion_Julz
Bavarian_Autotech wrote:Jhonno wrote:Only 7 heads made iirc
and probably none in a rhd shell
That pic is of a RHD shell (look at the steering )
Is it a 24v head, though, or just a Hartge style rocker cover on a 12v head?
Re: M20 24v ?
Posted: Tue Feb 24, 2009 12:56 pm
by Omi
Try clicking the middle picture?

Re: M20 24v ?
Posted: Tue Feb 24, 2009 2:29 pm
by Fushion_Julz
Ah...fair enuff, I'm being slow..Thought it was all one pic!
Nice looking combustion chambers...
Re: M20 24v ?
Posted: Tue Feb 24, 2009 2:45 pm
by 87mtech27
pic too small
Re: M20 24v ?
Posted: Tue Feb 24, 2009 3:25 pm
by Dave_M3
They open up in a new window on your browser in large pics
Combustion chambers look sweet alright

Re: M20 24v ?
Posted: Tue Feb 24, 2009 8:54 pm
by tha_lick
if it wasnt so rare. . . this head or a 2.5 m50 lump?

Re: M20 24v ?
Posted: Tue Feb 24, 2009 9:21 pm
by Dave_M3
M50 would have Vanos which would be better all round I suppose...
But, this head with a 2.8 M20 underneath would be pretty nice

Re: M20 24v ?
Posted: Tue Feb 24, 2009 9:24 pm
by march109
M20 24V or 12V over a M50 for me, old skool is where it at.
24V M20 had 100bhp per litre, thats 280 brake in a nice 2.8L N/A M20.
Re: M20 24v ?
Posted: Tue Feb 24, 2009 9:56 pm
by Dave_M3
Ahh, they even had the 2.8 conversion done too!!!
Definitely the M20 in that case
Much nicer to keep the orginial engine in a sport too... 316, 318i and 320s are a deferent matter, lol.
Re: M20 24v ?
Posted: Wed Feb 25, 2009 9:54 am
by march109
Dave_M3 wrote:Ahh, they even had the 2.8 conversion done too!!!
Definitely the M20 in that case
Much nicer to keep the orginial engine in a sport too... 316, 318i and 320s are a deferent matter, lol.
No sorry RD only got as far as 2.7L in the M20. I just meant imagine slapping that on one of the new 2.8 builds.
Re: M20 24v ?
Posted: Thu Feb 26, 2009 3:46 am
by 87mtech27
i read somewhere that the m50 24v head bolds straight onto the m20 block, however the valve timing etc needs to be configured for it to work.
personally i prefer te silk smooth m20 to the m50 only wished they were 24v now only to realise they were made although rare.
too tired to read what i wrote so excuse mistakes.
Re: M20 24v ?
Posted: Thu Feb 26, 2009 9:14 am
by march109
87mtech27 wrote:i read somewhere that the m50 24v head bolds straight onto the m20 block, however the valve timing etc needs to be configured for it to work.
personally i prefer te silk smooth m20 to the m50 only wished they were 24v now only to realise they were made although rare.
too tired to read what i wrote so excuse mistakes.
There would be no cooling to the head since the water channels don't line up, don't believe everything you read.
Re: M20 24v ?
Posted: Thu Feb 26, 2009 12:44 pm
by e21Jason
The bolts on but that's it.
There was a thread on an old e21 fourm were one of the guys is a BMW tech who posted a pictures of a m50 head on a m20 block that they had built up in the workshop, nothing but the studs and chambers lined up.
Jason