Doug, Earl Performance once made a housing that would bolt on to the 13B thermostat housing.  The part number I have is  166106.  They are hard to find now a days but here are two sources I found on the net.

 

http://www.earls.co.uk/earls/price_lists/Earls_car_prices.xls

 

http://www.performancedepot.com/pdpartnumber_search.php?compid=99999&dealer=no&partnumber=166106&part%23=GO

 

Ed

----- Original Message -----

From: DLOMHEIM@aol.com

To: Rotary motors in aircraft

Sent: Friday, January 18, 2008 8:56 PM

Subject: [FlyRotary] Thermostat Housing cover

Do I remember right that a member once posted that Ford sold a neck that would bolt onto the top of a 13B thermostat housing?  I tried an archive search and couldn't get any hits on it...