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B23 head on a B21? 200

posted by  someone claiming to be tony66_au on  Tue Aug 30 03:51 CST 2005 [RELATED]

Question

Can I use a B23 (Blacktop) head on a B21 engine?
Im assuming it will give me higher compression but will it fit and what am I likely to experience.

Heres the drum,
After a brief period of Volvo Abstinence Ive bought an 82 245 Manual.
It has a cracked head (Summised by the water that pours into the combustion chamber when the car sits still so Im guessing its not just a gasket)

I also have a 79 245 auto, poor body with a late B23 in good nick and I would like to have a play without having to bugger around swapping complete engines hence the head swap idea.

Cheers,

Tony








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B23 head on a B21? 200

uid 17368's pic
posted by  245L Van on  Wed Aug 31 05:41 CST 2005
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last visit: Wed Nov 14 06:20 CST 2012
[RELATED]

You'll lose compression, because you're bolting it onto a block with smaller displacement than the head was designed for. You could have it shaved, although I don't know how much you could take off without resulting in valve clearance issues.
--
Drive it like you hate it








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B23 head on a B21? 200

posted by  Trev29 on  Wed Aug 31 00:39 CST 2005
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last visit: Fri Oct 17 05:56 CST 2014
[RELATED]

I'm pretty sure it's a drop on. I asked that question some time back and got an affirmative.
--
1980 245 Canadian B21A with SU carb and M46 trans in Brampton, Ont.








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B23 head on a B21? 200

posted by  malloy1 on  Thu Sep 1 02:57 CST 2005
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last visit: Sun Oct 12 17:44 CST 2014
[RELATED]

Search over at turbobricks.com or ask questions. I suggest doing a search first. Alot more info on modifications to Volvos than Brickboard.

http://forums.turbobricks.com/showthread.php?t=6308&highlight=b21+b23+head

Paul







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