New
Normal
Increased low to mid range
Minimum effect on economy
Mild Idle
Suits cathedral or rectangular heads
No high stall required
See fitting notes
Also available to purchase with a dual spring kit
Click here for parts to suit LS1
Click here for parts to suit LS2
Click here for parts to suit LS3/L98
Click here for parts to suit L76/L77
Increased low to mid range
Minimum effect on economy
Mild Idle
Suits cathedral or rectangular heads
No high stall required
See fitting notes
Also available to purchase with a dual spring kit
| RPM Range | Part No. | Duration | with 1.7 Rocker | Lobe Sep Angle |
Lash
Measured Hot |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 1500 - 6000 | 871265S | 265° | 274° | 212° | 220° | .517" | .528" | 114° | HYD | HYD |
Must use performance springs.