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Ford Truck 240 300 Smog Cyl Head Plugs F100 F150 Econoline E100 Six Cylinder
These plugs allow you to remove the exhaust air supply rails from heads with the Thermactor Emissions System. Our plugs fit flush and will clear aftermarket headers, unlike the Ford plugs which are now obsolete. This is a set of six for Ford 6 cylinder 240 and 300 engines. Thread size is 9/16"-18.
