61-68 Solid Brass Engine Block Water Diverter Set
(These press into the front of the block behind the water pump and divert the cooling water up into the heads. When your diverters disintegrate, the heads starve for coolant and overheat. Measure the diameter of the hole, as they can be either 1 1/2 or 1 5/8 inches.)
90.00
http://www.bakersauto.com/
Call and see if they will also fit a 58/60. The 59/60 TBIRD engine is actually a 1959 LINC engine. Let us know what they say please.
On Page 2 of this forum, you will find a discussion of the thermostats and diverters.
Gary