How much does a 89-91 13b NA motor weigh? thanx

 

Not sure exactly, but my contacts using these engines in aircraft say the engine (short block, no accessories) weighs around 180 lbs. It's lighter than the '88 and prior rotaries though. they made lighter rotors beginning in '89.

 

Yes, just the block weighs about 180#
Complete with assecories about 350 or so

 

Its 183 lbs is what I heard a few months ago. and like crj said, with accessorties and what not, at or around 350 lbs.