Manley Performance Professional Valve Springs -1.550

- Chrome silicon material for oval track and drag racing

- Outer Type w/Damper

- Drag Race /Chrome Silicon

- O.D Size 1.550"

- I.D Size .720"

- Pressures 250 @ 1.850"/ 680 @ 1.150" / 1.090" Coil Bind

- Rate lbs./in. 614

- Weigth/grms 147