I'm looking to trade my bmx bike for a decent m42 engine preferably out of an e30 but would settle for one out of an e36. My bike is a 1995 schwinn xs enf aluminum frame with original aluminum handle bars but about a year ago put about $500 into it with all new parts. New crank, bearings, headset, ect. Pretty much everything on the bike is new except for the rims and pedals.