Air Injection Smog Tubes to Cylinder Heads

Plugs for all FE Thermactor cylinder heads (390-4V, 427-4V, 428CJ) and 1968 289 / 302 cylinder heads (casting number C8OE-6090-K) with the Thermactor tube holes. New Old Stock OEM plugs for the elimination of your Thermactor smog system or for replacing the "Home Depot" pipe plugs. Sold individually, a set of is 8 needed, one for each cylinder.

Set of nuts and Ferrules for thermactor smog tubes on any 1967 S code 390, 1968 390GT, 1968 GT-E 427-4V, or 1968-70 428 Cobra Jet engines. Mercury Cougar and Ford Mustang, Torino, Cyclone, Ranchero, etc. These will work with original or reproduction smog tubes. Fits most FE engine applications that used the air pump smog system in 1968 with manual transmission. We also have the smog tubes and other hardware.

Set of thermactor smog tubes on any 968 390GT, 1968 GT-E 427-4V, or 1968-70 428 Cobra Jet engines. Mercury Cougar and Ford Mustang, Torino, Cyclone, Ranchero, etc. These will work with original 390 or 428CJ cylinder heads drilled for air injection smog system from factory. Fits most FE engine applications that used the air pump smog system in 1968 with manual transmission. We also have the ferrules / nuts and other hardware.

These were installed at the factory on 390 / 427 / 428 equipped cars that were exported to countries that did not require the smog system. They are much shorter than the over the Ford counter service plugs you see in the states that are put on after one removes the smog system.

Plugs for all FE Thermactor cylinder heads (390-4V, 427-4V, 428CJ) and 1968 289 / 302 cylinder heads (casting number C8OE-6090-K) with the Thermactor tube holes. OEM plugs for the elimination of your Thermactor smog system or for replacing the "Home Depot" pipe plugs. Sold individually, a set of is 8 needed, one for each cylinder.*Note - Export cars that did not require smog had a much shorter version of this plug installed at the factory. The plug shown here would be considered an over the...

Application is for the FE engines 390, 427 428. This assembly is needed for the installation of the cylinder head air supply tubes. Sold as one nut / one ferrule. 8 total needed for smog tube attaching. Originally these were installed in conjunction with a lower tube.

Thermactor smog hose installation clamps. Fits all Ford and Mercury 1968 S code 390-4V or W code 427-4V engines sold in the US. Additionally fits 1968-70 428 Cobra Jet and Super Cobra Jet engines. Set of clamps, several bolts and spacer as shown. Include bolts for pump pulley, top bolt on pump for adjusting bracket, and pivot bolt and spacer for pump.

Left side tube that attaches to the 1967 California specific 289 cylinder head. Cylinder head must have the provision for this air supply tube. Cylinder heads with casting number C7OE-6090-A have this port for the exhaust air supply. West Coast Classic Cougars will supply this tube with the C6AZ-9A487-A smog tube check valve attached. Separating these two parts usually results in one or both parts being destroyed. Also called air manifold, part of air manifold assembly. *1967 289 Smog...

Right side tube that attaches to the 1967 California specific 289 cylinder head. Cylinder head must have the provision for this air supply tube. Cylinder heads with casting number C7OE-6090-A have this port for the exhaust air supply. West Coast Classic Cougars will supply this tube with the C6AZ-9A487-A smog tube check valve attached. Separating these two parts usually results in one or both parts being destroyed. Also called air manifold, part of air manifold assembly. *1967 289 Smog...

Left side Thermactor smog tube with the jog and bracket around the coil. Bare tube, installation hardware is not included. Not always available, hard to keep on the shelf, look for our reproduction tube set (right and left) available soon. Must have the correct cylinder heads with the drilled and tapped holes for these tubes. Also called air manifold, this unit is part of the air manifold assembly.

Right side Thermactor smog tube. Installation hardware is included as shown. Not always available, hard to keep on the shelf, we always have the reproduction tube set (right and left) in stock. Must have the correct cylinder heads with the drilled and tapped holes for these tubes.

This tube is embedded into the cylinder head making it rather difficult to remove intact. Note that the nut and ferrule assembly is made of two pieces, with the ferrule being a compression fitting used to secure the smog tubes to a series of ports on the cylinder head. Sold individually, 8 total needed for smog installation. Application is 1967 - 1970 390, 427. 428CJ engines. In 1975 Ford started making these out of stainless steel. Tube dimensions 5/16" O.D. x 1.960" long. C6AZ-9A484-C

Specific to 1968 302-2V, and 302-4V all with manual transmissions - 3 speed or 4 speed. Same tube both sides, sold singly as a bare tube without installation hardware. Two total needed, one for use on each cylinder head. Must use cylinder heads with casting number C8OE-6090-L (302-2V) or C8OE-6090-K (302-4V).Pictured below are some shots of an unrestored J code 302 as taken from a low mile 4spd XR7 parts car. We thought we would post these pictures as a reference for those wanting to know what...