SKU: ISK271265/275


Hydraulic Roller Camshaft suit LS1 1997-On 1400-5600
220°/230° @.050", .530"/.550" Gross Lift, 113° LSA

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Part Number: 271265/275
Grind Number: RR-265/275
Lifter Type: Hydraulic Roller
Engine Family: LS1 1997-On, Vortec 1990-On 4800-5300, 6000
Cam Family: Hydraulic Roller

Good mid-range power. Good vacuum & good idle. 3.23-3.70 axle ratio. 9.5-10.5:1 comp. Computer compatible with stage 1 chip. Stock converter. Up to 650 CFM Carb.


RPM Range: 2000-6000
Lobe Separation Angle: 113°
Valve Lash: Intake .000". / Exhaust .000".
Advertised Duration: Intake 265° / Exhaust 275°
Duration @ .050" Lift: Intake 220° / Exhaust 230°
Valve Lift: Intake .530" / Exhaust .550"

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