Where can I get the dimensions of the engine firewall to propeller on a Piper Seneca II & Chieftain?

Question

I'm needing this info to make a 3D image of from the firewall to the propeller. The engine mount dimensions would be a real treat. Hopefully this can be inexpensive as well.

Answer 1

Contact Piper, or go to an FBO that is serviciong one, that will let you measure it.  Don't hold your breath though.  It's not going to be easy...

http://www.piper.com/aircraft/seneca_v/s...