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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 1232-16These COMP Cams High Energyâ„¢ Steel Rocker Arms with a pedestal mount and 1.73 ratio are designed for 1968-86 Ford V8 429-460 applications. Engineered to help eliminate the noise and slop associated with older worn and high mileage stock Rocker arms, High Energyâ„¢ Rockers feature a long sl... COMP Cams Hi-Energy Rocker Arms FC/FF 1 1970-1978 Mercury Cougar XR-7 1977-1978 Mercury Cougar Base $218.37 |
 IN STOCK - DROPSHIPS 1235-16These COMP Cams High Energyâ„¢ Steel Rocker Arms with a pedestal mount and 1.6 ratio are designed for Ford 351W applications. Engineered to help eliminate the noise and slop associated with older worn and high mileage stock Rocker arms, High Energyâ„¢ Rockers feature a long slot for higher t... COMP Cams Hi-Energy Rocker Arms Ford 35 1969-1979 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $244.59 |
 OUT OF STOCK 1632-16Ultra 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 Arms FS/FW 1.6 7/16 Ultra 1977-1979 Mercury Cougar Base $527.54 |
 IN STOCK - DROPSHIPS 1634-16Ultra 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 Arms FS/FW 1.6 3/8 Ultra 1970-1978 Mercury Cougar XR-7 1977-1978 Mercury Cougar Base $530.42 |
 IN STOCK - DROPSHIPS RP1431-1668-'89 Ford 289 c.i., 302 c.i.d. V8 (Rail Type) Rocker/Pushrod Kit Includes: Full Set of (16) Magnum Rocker Arms.... COMP Cams Rocker Arm/Pushrod Kit Magnum 1977-1979 Mercury Cougar Base 1977-1981 Mercury Cougar XR-7 $282.56 |
 IN STOCK - DROPSHIPS RP1436-1669-'95 Ford 351 c.i.d. Windsor V8 Rocker/Pushrod Kit Includes: Full Set of (16) Magnum Rocker Arms.... COMP Cams Rocker Arm/Pushrod Kit Magnum 1974-1979 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $283.53 |
 SHIPS FROM MANUFACTURER RP1453-1668-'89 Ford 289 c.i., 302 c.i.d. V8 (Rail Type) Rocker/Pushrod Kit Includes: Full Set of (16) Magnum Rocker Arms.... COMP Cams Rocker Arm/Pushrod Kit Magnum 1977-1979 Mercury Cougar Base 1977-1981 Mercury Cougar XR-7 $259.68 |
 OUT OF STOCK RPM1431-1668-'89 Ford 289 c.i., 302 c.i.d. V8 (Rail Type) Rocker/Pushrod Kit Includes: Full Set of (16) Magnum Rocker Arms.... COMP Cams Rocker Arm/Pushrod Kit FS Mag 1977-1979 Mercury Cougar Base 1977-1981 Mercury Cougar XR-7 $395.34 |
 IN STOCK - DROPSHIPS RPM1436-1669-'95 Ford 351 c.i.d. Windsor V8 Rocker/Pushrod Kit Includes: Full Set of (16) Magnum Rocker Arms.... COMP Cams Rocker Arm/Pushrod Kit FW Mag 1969-1979 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $395.34 |
 IN STOCK - DROPSHIPS RPR1428-1668-'89 Ford 289 c.i., 302 c.i.d. V8 (Rail Type) Rocker/Pushrod Kit Includes: Full Set of (16) Magnum Rocker Arms.... COMP Cams Rocker Arm/Pushrod Kit Magnum 1977-1979 Mercury Cougar Base 1977-1981 Mercury Cougar XR-7 $304.74 |
 SHIPS FROM MANUFACTURER 1450-16Applications:Ford Small Block 289 c.i., 302 c.i., 351 c.i.d. Windsor V8 with Rail Type Rockers... COMP Cams Magnum Roller Rockers Ford SB 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $231.17 |
 OUT OF STOCK 1830-16The 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 Rockers FC 1.73 7/16in Ultra Pro 1968-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $653.59 |
 OUT OF STOCK 1830-8The 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 Rockers FC 1.73 7/16in Ultra Pro 1968-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $341.39 |
 OUT OF STOCK 1831-16The 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 Rockers FS 1.6 3/8in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $644.91 |
 OUT OF STOCK 1831-8The 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 Rockers FS 1.6 3/8in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $334.62 |
 IN STOCK - DROPSHIPS 1832-16The 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 Rockers FS 1.6 7/16in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $644.91 |
 IN STOCK - DROPSHIPS 1833-16The 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 Rockers FS 1.7 3/8in Ultra Pro 1967-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $644.91 |
 IN STOCK - DROPSHIPS 1833-8The 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 Rockers FS 1.7 3/8in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $334.64 |
 IN STOCK - DROPSHIPS 1834-16The 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 Rockers FS 1.7 7/16in Ultra Pro 1967-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $644.91 |
 IN STOCK - DROPSHIPS 1834-8The 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 Rockers FS 1.7 7/16in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $334.64 |
 IN STOCK - DROPSHIPS 1838-16The 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 Rockers FC 1.8 7/16in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $653.59 |
 IN STOCK - DROPSHIPS 1838-8The 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 Rockers FC 1.8 7/16in Ultra Pro 1974-1981 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $341.39 |
 IN STOCK - DROPSHIPS 1232-1This COMP Cams High Energyâ„¢ Steel Rocker Arm with a pedestal mount and 1.73 ratio is designed for 1968-86 Ford V8 429-460 applications. Engineered to help eliminate the noise and slop associated with older worn and high mileage stock Rocker arms, High Energyâ„¢ Rockers feature a long slot ... COMP Cams Hi-Energy Rocker Arm FC / FF 1970-1978 Mercury Cougar XR-7 1977-1978 Mercury Cougar Base $43.55 |
 IN STOCK - DROPSHIPS 1235-1This COMP Cams High Energyâ„¢ Steel Rocker Arm with a pedestal mount and 1.6 ratio is designed for Ford 351W applications. Engineered to help eliminate the noise and slop associated with older worn and high mileage stock Rocker arms, High Energyâ„¢ Rockers feature a long slot for higher than... COMP Cams Hi-Energy Rocker Arm Ford 351 1974-1979 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $42.96 |
 IN STOCK - LOW 1450-1This Magnum Roller Rocker Arm for Ford V8 289-351W (Rail Type) 1968-89 Applications is the ultimate street Rocker. With a 3/8" Stud diameter and 1.7 ratio, it is designed for Serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly Steel, which is a superio... COMP Cams Magnum Roller Rocker Ford SB 1969-1979 Mercury Cougar XR-7 1977-1979 Mercury Cougar Base $42.24 |