Manley Performance Drag Race Valve Springs - 1.677 Triple

- Unequalled performance

- All springs are triple except 221424, 221425 & 221454 which are double w/o damper

- Better valve train stability and component life

- Ideally suited for Sportsman Drag Racing applications

- Sportsman and Bracket Classes

- Maximum Valve Lift .900

- O.D. 1.677

- I.D. .635

- Installed / Open Pressure 350 @ 2.100 / 1010 @ 1.200

- Rate (lbs/in.) 733

- Coil Bind 1.142

- Weight (grams) 196