Hi there, i have two 91 heli engines for sale, one is a max 91 sx h ring c spec ps viper. £380 new its had about ten gal. of 20% magnum and would like a service but still runs fine, due to the amount of work it has done, i am selling for £150 this would make it still possible to replace piston etc and still have a good price for the top of the range os engine.
the other is a gold head sx 91 c spec this has a small crack where the bolt go s for the pipe but the compression is great, (might be too good for your starter) only had four flights, did not pull out of a side drop, and i got a new 90 se with the engine fitted so this one is spare.
the spares , email me and ask for what you want and i have prob. got it.
steve@lathammail.co.uk