Re: [Amc-list] 71 Gremlin 232

[Jim Blair <carnuck@xxxxxxxxxxx>]

I dislike the plastic valve covers! If I didn't have a 4.0L head, I'd be tempted just to swap the plastic covered one on my Spirit for a tin cover one I have from an '80 Jeep! 
 
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Date: Thu, 21 Feb 2008 12:25:49 -0800 (PST)
From: Greg Taylor <amundaza@xxxxxxxxx>
 
I would recommend getting the later 1980's 258 cylinder head, intake and exhaust manifold.  Those 258's had 9.2:1 compression.
   
  Then you could do the Chevy 1.94/1.50 valve conversion, using the undercut stems for more low/mid range air flow.  Picks up an easy 30 HP in breathing on a stock 258 in my '83 spirit GT.  FYI, on a stock bore engine, I had the exhausts cut down to 1.45" diameter.
 
-- 
Frank Swygert
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