NSR stage 1 grind 6.4L Apache. Awesome across the board power increases. For 6.4L only. Best choice for street cars. Requires phaser limiter (#5761) or phaser lock (#5760).
Basic Operating RPM Range
1,800-6,800
Intake Duration at 050 inch Lift
218
Exhaust Duration at 050 inch Lift
228
Duration at 050 inch Lift
218 int./228 exh.
Advertised Intake Duration
271
Advertised Exhaust Duration
279
Advertised Duration
271 int./279 exh.
Intake Valve Lift with Factory Rocker Arm Ratio
0.571 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio
0.545 in.
Valve Lift with Factory Rocker Arm Ratio
0.571 int./0.545 exh.
Lobe Separation (degrees)
114
Remanufactured
No
Computer-Controlled Compatible
Yes
Valve Springs Required
No
Quantity
Sold individually.
Notes
Requires custom tuning, disabling of the MDS and phaser limiter or lock.
