I did the search, and still don't have the info I need.  Is the square head actualay a rectangle shape?  I have a couple of these engines and have read that the sq head is the one to have, so is this the sq head?

   In advance THANKS...

   Thanks Matt, the ones that I have have the head like the rear exhaust, so I am gonna say that is the sq head version, now who has some good suggestions for good stunt runs, using the hi-rpm low pitch run...

  Thanks fellows, the T T 36 that I have is the 36 Pro, so I will work with that using the suggestions from Randy Smith, again every one thanks..

  Randy, what thickness are the stock head shims, and where can I get some of them?

I have them, they  come with  2 head shims, 1- aluminum .012   and  1- Copper  I think is  .003 , also in the pack is  rear cover  gasket  and  1-  crankshaft steel spacer, they are  6.95  per pack

Randy

Randy,
Is the TT Pro 36 the same engine the Aerotiger is made from ?

If so,
do you still do them when you can get an engine ?
Mike

hI MIKE
AERO  TIGERS   were  , to start made from magnum 36 engines that were made in Taiwan ,  then after they started to make Magnums in China, Since they have all been made from Thunder Tiger  36s,  So you have the same motor, badge as Magnums and Thunder Tiger, Thunder Tiger  made ALL Magnum engines up until the point that they moved them to China
 I am working on getting another  run of  Aluminum Chromed  sleeves, I have the other  parts here, I will let you know  how and when  If I get them in

Randy

You Can Have Mine , for That . 

THINGS seem to come in batches , over a few weeks , like on R C forum & ebay . Been a few on Ea a month back . And FSR 45 Royals a year back .
Comes a point when theyre all ' spoken for ' and the price jumps . From 20 Bucks . 

HELICOPTER ones as often in the TT 36 . cheapest worthwhile looked to be $ 60 plus .

A lot of ABN stuff is shot , tho if your relinering it , thatd be ok if thats all that was ? IF IT WAS DIRT CHEAP .

a certain 50 FS Heli in ' MINT ' condition appears to be BRASS exposed from A to B in the bore .

Caveat Emptor

as Julias Ceaser said .