I have a set of 3500 heads and each head has a port for the coolant temp sensor. I am trying to find out what size bolt or plug is needed to close the hole not being used. Any Help would be great. Thanks.
12x1.5x20mm
Ill throw one in the box that will be going out Monday via Fedex.
Ben
60DegreeV6.com
WOT-Tech.com
Thanks Man.