Originally Posted by Tiny_Jaime
The application for the thermostat should be off a '62 C60 with a 261 engine.
(I couldn't find a big C60 listed)
CHEVROLET 1962 C20 PICKUP 4.3L 261cid L6 Cooling System Thermostat Housing:

FEL-PRO 5021; Alternate/OEM Part Number(s): 1634360010, 25040, 25138, 25148, 740006, 838297

VICTOR REINZ C24529; Alternate/OEM Part Number(s): 838297, 888297

Chill man- hope this helps! It is from Rock Auto, so double & triple check what I looked up-- I'd hate to see somebody drop $0.93 on the wrong gasket!

Brad

Last edited by Uncle Brad; 01/28/2016 6:37 AM.
Wrench Fetcher, PhD