Quote:
Originally Posted by Henrys Toy
Good morning to all,
The unique part of this class is the racer has to use an Iron Cylinder Head.
I do believe that Chevrolet did cast Iron LS cylinder heads, But I don't know if they are legal.
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Tidbit of trivia. I believe the only LS to come with iron heads was a 99-00 6.0 truck engine. Would be interesting to see what the cast iron cathedral ports are like compared to their aluminum counterparts.