doublezo Member Aug 7, 2010 #1 hi, i just had my block (51 merc) bored over 0.060. will i need big bore head gaskets? this might be a dumb question, but i really dont know the answer, thanks.
hi, i just had my block (51 merc) bored over 0.060. will i need big bore head gaskets? this might be a dumb question, but i really dont know the answer, thanks.