2 things>>>>> posted by SWEET Z on March 17, 2002 at 09:36 PM
Message
How do you know for sure that there wont be any interference between the piston and the plug? I understand your logic that the crown is lower on the TT cuz the pistons are dished, but my TT engine started as an NA engine. Have you done the same thing and determined that TT plugs will work without problems?
The heads aren't the same part number (from tt to na) and exactly what the differences are is still unknown. I'm going to try gapping the plugs to 0.7mm and retry that. I am using the colder NA plugs right now and if regapping doesn't work I'll just have to wait and see if the TT plugs will fit without interference.