Originally Posted by mugenb46
is work to the crank done with a dremel or am i looking at some very expensive machinery here
Dremel is enough if you want to make engines for yourself or for friends (small quantities). Use diamond bits-they work just great. You can get them practicly in any hardware store. You can get made in Chine cheaper, but they don't last, Dremmel original last way more, but costs is higher. If you ar eplaning to get to moding seriously, then you will need to invest $$$$ to right machines. Not neccessarely CNC, may be conventional but will be high precision grade and pretty expencive.