Roller Rocker Arm Set, GX390 1.3 or 1.2 Ratio Gage Motorsports
- In stock, ready to ship
- Inventory on the way
GAGE Black Venom Series Roller Rocker Arms with
Needle Bearings - GX390
Fits GX340, GX390, non-Hemi 420s, and 460s. Will not fit GX240/270s.
Rocker Arms, Full Roller Rockers, Aluminum.
Available in 1.2 and 1.3 ratio.
CNC machined from aircraft grade aluminum
- Needle bearings
- Hardened roller tips and shafts
- Dyno tested to 10,500rpm and proven to increase horsepower
- These, as tested, show a 3% increase in maximum torque and HP over standard aluminum rockers.
These rocker arms do not fit the HEMI head big block engines!