so i race a 3a bottom and a solid rabbit head and i now need a piston. 3a piston you say? good luck with that wihtout a new mortgage. i notice that the mk4 engines like aeg have the same bore and stroke and i "think" rod length. anyone know for sure if this piston and/or rod may fit? i have an aeg sitting here and don't really want to rip it apart if parts won't work.