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Looking for aftermarket parts to modify or upgrade your 1978 Mercury Cougar with rocker arms? At Tunersports.com we carry a huge selection of the top name brand performance rocker arm parts and accessories.
 IN STOCK - DROPSHIPS 1632-1Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity ... COMP Cams Rocker Arm FS/FW 1.6 7/16 Ultra 1977-1979 Mercury Cougar Base $58.52 |
 IN STOCK - DROPSHIPS 1634-1Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity ... COMP Cams Rocker Arm FS/FW 1.6 3/8 Ultra P 1970-1978 Mercury Cougar XR-7 1977-1978 Mercury Cougar Base $58.52 |
 OUT OF STOCK 1830-1The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precisio... COMP Cams Rocker FC 1.73 7/16in Ultra Pro 1968-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $83.58 |
 IN STOCK - DROPSHIPS 1831-1The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precisio... COMP Cams Rocker FS 1.6 3/8in Ultra Pro 1967-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $76.85 |
 IN STOCK - DROPSHIPS 1832-1The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precisio... COMP Cams Rocker FS 1.6 7/16in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $76.85 |
 IN STOCK - DROPSHIPS 1833-1The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precisio... COMP Cams Rocker FS 1.7 3/8in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $76.85 |
 IN STOCK - DROPSHIPS 1834-1The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precisio... COMP Cams Rocker FS 1.7 7/16in Ultra Pro 1967-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $76.85 |
 OUT OF STOCK 1838-1The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precisio... COMP Cams Rocker FC 1.8 7/16in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $83.58 |
 IN STOCK M-6529-A302Have you ever had problems adjusting rocker arms on your car? Kiss those problems goodbye with these rocker arm shim kits from Ford Racing. They are to be used with all bolt-down style roller rocker arms to obtain correct lifter preload. These kits include 16 thin and 16 thick shims, which can be us... Ford Racing Valve Rocker Arm Pedestal SHim Kit 1978-1979 Mercury Cougar Base 1978-1981 Mercury Cougar XR-7 $49.16 |