Description:

This Z28 Style Performance Valve Springs Kit with steel retainers and HD locks is designed for Small Block Chevy SBC 327 350 400 engines to provide enhanced durability and reliability.

• Valve Spring Material: Chrome Silicon
• Max Lift: 0.550 inches
• Spring Type: Single with Damper Valve
• Spring Diameter: 1.250 inches
• Installed Height: 110 lbs at 1.700 inches
• Open Load: 285 lbs at 1.210 inches
• Retainer Material: 4140 chrome moly steel, heat treated
• Lock Angle: 7 degrees
• Lock Specification: Single, square, heat treated
• Fit Type: Vehicle Specific
• Item Dimensions: 5.5 centimeters length, 3.2 centimeters width, 3.2 centimeters height