Firing Order: 1-8-7-2-6-5-4-3
*Note: 1997-Up GM 5.7L LS1, 1988-99 305 and 350 V8 (and some 1987 350 V8) engines, and the 1957-87 262-400 V8 engines, each use different configuration camshaft cores, and cannot be interchanged.
SMOOTH IDLE WITH EXCELLENT LOW-END AND MID-RANGE TORQUE. ADVISED FOR 1997-UP CORVETTES AND 1998-UP CAMAROS AND FIREBIRDS WITH AUTOMATIC TRANSMISSION.
| Grind Number: | HR-206/294-2S-14.55 |
| Operating Range: | 1500-5000 RPM |
| Duration Advertised: | 270° Intake / 278° Exhaust |
| Duration @ .050'' Lift: | 206° Intake / 214° Exhaust |
| Valve Lift w/1.7 Rockers: | .500'' Intake / .500'' Exhaust |
| Lobe Separation Angle: | 114° |
| Max Lift Angle: | 109° ATDC Intake / 119° BTDC Exhaust |
| Open/Close @.050'' Cam Lift: | Intake - (6°) ATDC (opens) / 32° ABDC (closes)
Exhaust - 46° BBDC (opens) / (12°) BTDC (closes) |
