IML: Cylinder heads and sunken valves

["Robin Giesbrecht" <robings@xxxxxxxxxxx>]

If anyone is interested there are some very good tech articles on Mopar 
Muscle's site regarding big block cylinder heads. They tend to blow away 
some of the rubbish surrounding Mopar heads. The latest  heads(452) from 
76-78 actually are probably one of the best. I went to local pick a part 
today and pulled a set from a 1977 Newport with a 400. As an added bonus 
looks like they were themselves overhauled recently as they are very clean 
with newer frost plugs and Felpro gaskets. And the exhaust seats are 
perfect. It seems to be debateable whether 1972 heads had hardened seats. I 
don't think mine were as I have never seen seats so badly recessed. Maybe 
that was a bad day for heads. However I am happier now and will proceed with 
my top end work which includes a mild performance Summit cam package.

Robin Giesbrecht
1972 Imperial




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