I have to agree here. Aluminum's heat dissipation qualities are preferred
over those of cast iron. You save a significant amount of weight too. Make
sure the cooling system is up to the task of the increased hp, and warping
shouldn't be a problem.
I have a cast iron head on my race car right now, but only because that's
the way the car came. I have three bare aluminum cylinder heads as spares.
When I build up the three-main motor over the winter, it will have an
aluminum head on it. Right now I'm hoping to get 140-160 horsepower, and
will go up from there.
> From: "Henry Bahn" <hbahn@home.com>
> Reply-To: "Henry Bahn" <hbahn@home.com>
> Date: Fri, 3 Aug 2001 15:17:13 -0400
> To: <datsun-roadsters@autox.team.net>
> Subject: iron head
>
> We had this discussion about a year ago, and Joe Hauser pretty much put it
> to rest. The alum.head has better heat dissipation, not worse, than the
> cast iron head, and is not more likely to warp. Claims of increased HP from
> the iron head just ain't so. I don't think anyone is using CI heads for
> competition roadsters.
Happy roadstering,
--
Chris Coker
69 1600 SPL311-24529 <http://members.home.net/cfcoker/roadster.html>
6? 1600 GP Race Car <http://members.home.net/cfcoker/racecar.html>
Royal Oak, MI
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