Hanger 9 provides a mount with all of their 1/4-scale ARFs that is perfect. You can buy it separately for $9.95 I also tried to mount a Moki 180 on a Hanger 9 73" Cap 232 and the firewall was definetely not design for a radial mount. The aluminum mount that came with the kit is design to take an very wide variety of engine sizes and easily took my Moki. Check out this link:
http://horizon.hobbyshopnow.com/prod...p?prod=HAN2033