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Valve sizes are...
the same across the B cars heads. They are 46 intakes and 39 exhausts from the 2.2 all the way to the 2.7L cars. Only the port sizes changed. What makes this really nice is that the 'bowl' of the port above the valve is the same as well, so that critical area is taken care of by the factory on all the heads.
tadd
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1967 912 with centerlocks… 10 years and still in pieces!
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