Designed for modified engines, aftermarket pistons with valve reliefs. Requires BC valve spring kit, seals and guides for clearance due to high lift.
| Adv Dur (.020") |
265°/265° |
| Dur @ .050 |
240°/240° |
| Valve Lift (1:1) |
.450"/.450" |
| Valve Lift (mm) |
11.43/11.43 |
