Product Description
6010-S400 33cc Head
ARC Billet Cylinder Heads for the Briggs 5hp Flathead(model 13) is made from 6061 T-6 Aluminum.
These heads were designed for maximum heat retention, which is a desirable trait for Junior Dragsters. The "S" pre-fix denotes the depth of the combustion chamber. (S400 = 0.400") These heads have a valve diameter of 1.25" for the intake and 1.125" for the exhaust.
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