Thread: small block chevy head mismatch
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07-06-2006 08:36 PM #2
Looks like a mismatch to me. Even though you measured the valve sizes the same - my database shows different. Maybe they were changed at the factory or somewhere down the line during a rebuild? Hard to say, not a exact science.
Anyways the chamber size shows different and also the intake port cc's
And then a newer model....
Montana Mail Runner