Hi,

I am building a Great Planes P-51 kit. I already drilled the firewall to accept the Great Planes .40-size engine mount. I was originally going to use an O.S. 46 FX in this plane, but I am now considering the Saito 72.

Will the Saito 72 fit in the Great Planes .40 engine mount (which is supposed to accept up to .70 4-stroke) ?

Also, according to the plans for this kit, if you are going to mount a 4-stroke .70 engine (the one shown on the plans is the O.S. 70), then it is recommended to mount the engine directly to the firewall with a different kind of engine mount (either for vibration dampening or because the 4-stroke engine is longer and needs to be all the way back to the firewall for proper nose length) Since I already drilled the firewall for the Great Planes mount, I would prefer to use it.

Has anyone out there mounted a .70 or .72 4-stroke onto a Great Planes engine mount on this plane and had it fit?

Any input would be greatly appreciated!

-Dan