Hi Lawrence, long time....
I just made a post regarding my apache crutch which I was going to mount a .11 car engine on.... I got it going but went electric because the engine was old and I got tired of fiddling with engines instead of flying.
All I do now is charge the Lipo, go outside take the apache for a spin and having a Blast ! and then go inside to charge again.
Ok, if you still want to do it, you need to do the following.
Take your car enigine to a LHS and let them tell you what you need to put a clutchbell from Team Associates on your engine.
Team Associates pitch is 32 (I think) which is the same as LMH uses.
Then, come up with a plan to mount the engine it to your crutch... thats it !
Keep us posted !!
//Peter