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Date: 7-17-08 03:48
From: esty
Subject: Re: Anyone got a spare head ? ;-)
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Date: 7-17-08 04:18
From: Rob.
Subject: Re: Anyone got a spare head ? ;-)
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Where are you located and which head do you need? I have one from a 74 but I'm in NC and shipping might kill you. It will need to be rebuilt.
Rob.
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Date: 7-17-08 04:18
From: Rob.
Subject: Re: Anyone got a spare head ? ;-)
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Where are you located and which head do you need? I have one from a 74 but I'm in NC and shipping might kill you. It will need to be rebuilt.
Rob.
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Date: 7-18-08 05:44
From: mike in Beavercreek, OH
Subject: head options...
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1. Take your existing head to a machine shop and get a price on repairing the crack and doing the usual--valve grind, replace valve guides and stem seals with the later style. A good machine shop may have a better idea of whether your head can be salvaged than your mechanic unless he's really experienced with BMW engines. And dthere are bound to be some good machine shops in Tampa.
2. A 320 (E21) head will work on your car with two caveats: no provision for a mechanical fuel pump and (IIRC) the dizzy turns backwards from an '02, so you'll have to swap camshafts. Or maybe that's an E30 M10 engine...
3. If you replace the head, you'll need an E12 head for a '73. The 121 head isn't compatible with your pistons, and has smaller valves besides. I think an E21 head will work, but might do some strange things with your compression ratio--those on the board more expert than I can answer that.
A bad head (at least one on your car) isn't that big a deal--lotsa spare (M10) heads out there..and for shipping purposes, a complete head (with valve train and cam) weighs about 27 lbs.
cheers
mike _________________ '69 Nevada sunroof--"Wolfgang"--bought new
'73 Sahara sunroof-- "Ludwig"--mine since '78
'87 eta E30 coupe--"Johannes"
+ Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette)...
and Kermit, the Bugeye Sprite
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