View Full Version : PCM 351W Cylinder Heads

09-16-2005, 05:18 PM
What is the major difference between Marine cylinder heads and the Auto version. Just looking into some possibilities and wondered what I should be looking out for.

09-18-2005, 02:26 PM
Bronze/brass freeze plugs in the marine head vs. stamped steel in the auto heads.. Other than that, they're identical.