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Exhaust manifold bolt / stud for mounting the heat shield on the passenger side. This is the longer of the two stud bolts. See item 41350 for the short heat shield bolt. For all Mercury Cougar or...
Exhaust manifold bolt / stud for mounting the heat shield on the passenger side. This is the shorter of the two stud bolts. See item 31171 for the short heat shield bolt. For all Mercury Cougar or...
Thermactor smog tube installation ferrules. Set of 8 nuts and barrel shaped ferrules. Fits: 1968 Ford and Mercury S code 390-4V engines sold in the US. 1968 Ford and Mercury W code 427-4V...
Three piece Thermactor Smog hose set; moulded, striped, and stamped like original factory installed hoses. The 1968 ink stamped was likely used partially into 1969. We also list hoses with...
Fits all* Ford V-8 engines, 1967 - 1973. *- NOTE: This will fit in the 351C, 351M or 400 but will not block off the port to recirculate the water back through the engine. This can cause the...
For use in any 1967-1973 Mercury Cougar except for the 351c in stock configuration. Will work on 351c when you use this Bypass / Restriction plate conversion part. ...
Fits all* Ford V-8 engines, 1967 - 1973. *- NOTE: This will fit in the 351C, 351M or 400 but will not block off the port to recirculate the water back through the engine. This can cause the engine...
For use in any 1967-1973 Mercury Cougar except for the 351c in stock configuration. Will work on 351c when you use this Bypass / Restriction plate conversion part. Check out this video ...
This fail safe thermostat can save you from costly engine damage during an overheat. They feature an exclusive technology that locks the valve open position if overheating occurs. This allows for...
Cast construction with very good quality chrome. Looks great with chrome valve covers and air cleaner. For some helpful tips on upgrading your Cougar (or Mustang) cooling system, check out our video ...