Super 7 Shoulder V/L - 5/16 +.050 Radius

The Super 7 Shoulder V/L - 5/16 +.050 Radius is a precision valve lifter engineered for high-performance engine builders and seasoned mechanics tackling serious valve train modifications. This component is essential when you're upgrading to a custom camshaft profile that demands exact rocker geometry alignment and optimized valve lift characteristics. Whether you're building a vintage muscle car engine, a modern performance platform, or a competition powerplant, this Del West lifter ensures your valve events occur at peak efficiency without binding or excessive wear.

Manufactured by Del West, a trusted name in valve train components, the Super 7 Shoulder V/L features a 5/16-inch body diameter with a precisely ground +.050-inch radius shoulder. This radius specification is critical—it controls how the lifter interfaces with the cam lobe, distributing loads evenly and reducing spalling and premature failure under high RPM conditions. The compact profile (3 × 0.9 × 4.05 inches, weighing only 0.19 lbs) makes it ideal for tight engine compartments, while the shoulder geometry ensures compatibility with both stock and aggressive hydraulic or mechanical cam profiles. The precision manufacturing tolerances Del West maintains guarantee repeatable valve lift across all eight cylinders, which is non-negotiable for balanced power delivery and longevity.

This lifter is best suited for engine builders replacing worn valve train components during a cam swap, upgrading to a higher-lift profile, or restoring an original engine to exact OEM specifications. The 5/16-inch shoulder diameter and +.050-inch radius make it compatible with small-block engines that demand precision lifter geometry—particularly Chevrolet, Ford, and Mopar platforms where valve train compliance directly impacts combustion efficiency. When installing, verify that your pushrods and rocker arms are matched to this lifter's specifications to avoid geometry conflicts. Pair this component with quality hydraulic fluid, a fresh cam, and new pushrods for optimal results and extended component life.