Join Date: Jul 2000
Thanked 235 Times in 222 Posts
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Those symptoms do strongly indicate a cracked head.
Check around with your local automotive 'speed shops' and 'auto mechanic shops' who specialize in racing. There are entities that can repair cracked heads and other cast iron components ...but this is a difficult and exacting process that takes lots of experience and expertise and wont be 'cheap'. These local folks may be able to 'steer' you to such a source.