Single port heads have 6mm threads. Fits Type 1 45-70, Ghia 56-74, Type 2 50-70, Type 3 62-66. The 6mm threaded hole can be tapped to 8mm.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution controlled vehicles only.
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