Ok my buddy is trying to prep my spare head at his machine shop and has done a great job thus far, but during the surface prep for my MHG he got it flat milled but the surface just doesnt look smooth enough. You can still see a lot where the cutting head cut. I read somewhere on here about "lapping" the head I believe was the term. Can anyone give me a process or idea of what that is so I can relay that info to him for this head. He doesnt normally deal with imports, let alone supra's, and has never needed as fine of a finish on the head as I have read on here.
Also as a side note, there is also some pitting on the head as it had about 220k on it before it came off the motor, will that effect the MHG I am planning to put on the motor? I have a 1.2mm HKS i believe MHG. And the pitting looked as if it were around the water jacket area. Nothing that would be a problem near the cylinder bores or combustion chambers.
Also as a side note, there is also some pitting on the head as it had about 220k on it before it came off the motor, will that effect the MHG I am planning to put on the motor? I have a 1.2mm HKS i believe MHG. And the pitting looked as if it were around the water jacket area. Nothing that would be a problem near the cylinder bores or combustion chambers.
