Yes, all the 90 degree V4 loopers midsections have the same powerhead mounting bolt pattern. Some have V6 style gearcases, most have the smaller V4 gearcase. Both have the same bolt pattern.
thanks Dhadley,mine does have the v6 gearcase,its a 1985.so all v4 looper 90 degree gearcases interchange. are there any other gearcases that will fit the looper mid easily? ie crossflow?