Do I need MLS or graphite head gaskets?
07-01-2010, 04:37 PM
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Do I need MLS or graphite head gaskets? Well after the cometics are making coolant disappear again
, I going with GM gaskets, which one would seal better with 243 heads milled 21 thousandths?
, I going with GM gaskets, which one would seal better with 243 heads milled 21 thousandths? 
