Looking for aftermarket parts to modify or upgrade your 1978 GMC G25 with rocker arms? At Tunersports.com we carry a huge selection of the top name brand performance rocker arm parts and accessories for your G25.
Whether you have a 1978 GMC G25 in Rally to Vandura trim we have you covered. We have 7 rocker arms available to mod your G25. All parts have free shipping to the Continental US 48 States.
 SHIPS FROM MANUFACTURER 1261-12These COMP Cams High Energy Steel Rocker Arms designed for Chevy 6 Cyl 194-292 applications help eliminate the noise and slop associated with older worn and high mileage stock rocker arms. With a long slot for higher than stock lift camshafts, these rocker arms are an excellent replacement choice fo... COMP Cams Hi-Energy Rocker Arms C60 1.7 1978-1978 GMC G25 Vandura $103.11 |
 SHIPS FROM MANUFACTURER RPG100Rocker Arm Kits from COMP Cams come with everything you need to install your new rocker arms in one convenient package. With this kit, there is no second guessing; you know all the parts match. Confidently install your new rocker arms and experience the difference. All components are also available ... COMP Cams Rocker Arm/Pushrod Kit CS 1.5 1977-1978 GMC G25 Rally / Rally STX / Vandura $251.95 |
 SHIPS FROM MANUFACTURER RPM1416-16COMP Cams Rocker Arm Kits come with Magnum Rocker Arms and Magnum Pushrods in one convenient package. With this kit, there is no second guessing; you know all the parts match. Confidently install your new rocker arms and experience the difference. All components are also available as separate pieces... COMP Cams Rocker Arm/Pushrod Kit CS Mag 1977-1978 GMC G25 Rally / Rally STX / Vandura $334.95 |
 SHIPS FROM MANUFACTURER 17002-12These High Energy Die Cast Aluminum Roller Rocker Arms for Chevy V8 265-400 applications are perfect for street and moderate race use. With a 3/8" stud diameter and 1.6 ratio, the die cast, larger-than-stock body of the rocker arms is made of aluminum for superior strength with light overall weight.... COMP Cams High Energy Alum RockerSBC 1. 1975-1978 GMC G25 Rally / Rally STX / Vandura $183.98 |
 SHIPS FROM MANUFACTURER 17005-12These High Energy Die Cast Aluminum Roller Rocker Arms for Chevy V8 265-400 applications are perfect for street and moderate race use. With a 7/16" stud diameter and 1.6 ratio, the die cast, larger-than-stock body of the rocker arms is made of aluminum for superior strength with light overall weight... COMP Cams High Energy Alum Rocker SBC 1 1977-1978 GMC G25 Rally / Rally STX / Vandura $183.98 |
 SHIPS FROM MANUFACTURER 1810-16COMP Cams Rockers CS 1.5 1/2in Ultra Pro 1975-1978 GMC G25 Rally / Rally STX / Vandura $618.95 |
 SHIPS FROM MANUFACTURER 1219-1These Nitrided COMP Cams High Energy Steel Stud Mount Rocker Arms designed for Chevy V8 396-454 applications feature a 7/16" stud diameter and 1.7 ratio. High Energy Rockers help eliminate the noise and slop associated with older worn and high mileage stock rocker arms. With a long slot for higher t... COMP Cams Rocker Arm Hi-Energy CB 1.7 N 1975-1978 GMC G25 Vandura $38.37 |