Scorpion Endurance Series shaft-mount rocker arms are over-engineered so your engine’s valvetrain timing stays rock-solid race after race. That’s a really big deal at high rpm where stud-mount rockers deflect and move around, which will cost you horsepower and increase valvetrain wear. Related Articles - Lokar Cable Mounting Bracket for Sniper 2 - Silv-O-Lite Hypereutectic Pistons - Stef’s Performance Products’ 3-Gallon Truck Pull Dry Sump Tank
Endurance Series rocker arms feature fully-radiused bodies CNC-machined from 7000 Series aluminum. The bodies are micropeened and blasted to reduce residual stresses, and are fitted with a needle bearing fulcrum and roller tip. Assembled rockers weigh just 120 grams and clear valve springs up to 1.650″ in diameter. China Shampoo Chair
Other features include: • .562″ centerless ground, ATM-certified, bearing-quality steel rocker shafts • .625″ of adjuster engagement • 4140 steel rocker stands heat-treated for long life • Mounting hardware and self-locking rocker nuts included
Scorpion Endurance Series Shaft-Mount Roller Rocker Arms are available for Gen I small block Chevy and small block Ford in these ratios: • Chevy: 1.5, 1.6, 1.65, 1.7, 1.75, 1.8 • Ford: 1.6 and 1.65
You can get Endurance Series rocker arms for Chevy in half-ratio and mixed-ratio sets. In addition, .200″ and .450″ offset rockers are also available.
Summit Racing also carries Scorpion’s Stinger Upgrade Kit to take your Endurance Series rocker arms to the next level. The kit includes solid bronze bushings with helical-cut oil grooves to deliver pressurized oil to the rocker arms and valve springs. That increases parts life and actually extends the rockers’ RPM range.
SEE SCORPION RACING PRODUCTS ENDURANCE SERIES SHAFT-MOUNT ROCKER ARMS AND STINGER UPGRADE KIT AT SUMMIT RACING
This new package size offers added convenience for owners of boats with larger sumps.
AMSOIL Marine Engine Oil is engineered for superior performance and protection in marine applications, and it is now available in 1-gallon containers. This new package size offers added convenience for owners of boats with larger sumps.
AMSOIL Marine Engine Oil is formulated with robust anti-wear additives to help reduce wear in metal-to-metal contact regions and guard against compression loss. It provides excellent shear stability and delivers a consistent lubricating film that helps protect engine components against the heat and stress of high-rpm operation. Fortified with potent rust inhibitors to prevent rust and corrosion, AMSOIL Marine Engine Oil protects engines during use and during inactivity or long-term storage.
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