Re: Several questions...

Posted by PackardV8 On 2012/2/18 8:33:49

In SOME (which means NOT All) applications, especialy aluminium, the FEmale threads in the block are also recessed by 2 or 3 threads meaning that there are NO threads at the top 1/32 to 1/16 inch of the surface of the block. This ia also done to keep any distortion at the surface of the block immediately surrounding the female threaded hole from mushrooming up.