Sorry if I mislead you to my wording... Suprafiend is right that is what we are trying to do the pulley but I have talked to another machinist we know wnd told us that he can machine another 5M pulley for us and also the keyway would be machined to make it all fit... this way we would be still be utilizing the strenght of the woodruff key and not machining it.... This is still a test engine... we still find problems but we are doing our best to find the right answer to this engine swap.SupraFiend said:I think he was impling that the keyway is still there on the pulley after the machining, its just alot less deep and the key needs to be machined to fit in the smaller space. So does the machined crank pulley still look safe? And is there enough room to cut the key way deeper still? The one thing that worries me about machining the key down is weakening its grip on the crank. I know enough people that have had keys destroy themselves and\or the pulley and crank with it with stock specs. Most of those were due to loose crank pulley mind you but its still something to worry about. I think I may have to dig up a 6m crankpulley part number and see if a local dealer can order me one.