COMP Cams 11-677-4 Xtreme Energy 236/242 Solid Flat Cam for Chevrolet Big Block 396-454

Replacing worn or original camshafts in Chevrolet 396-454 c.i. 8 Cylinder engines (1967-1996), the COMP Cams Xtreme Energy solid flat tappet cam (part number 11-677-4) delivers mid-range torque for street and performance driving. With 0.568 inch intake and 0.578 inch exhaust valve lift, the XS274S grind provides 236-degree intake and 242-degree exhaust duration at .050 inch lift with 110-degree lobe separation. The 2,000 to 6,400 RPM operating range and cast iron construction with 3-bolt attachment suit demanding applications. Assembly lubricant is included. Lifters are not included; valve springs are required.

• Camshaft Series: Xtreme Energy
• Usage: Street/Performance
• Cam Type: Solid Flat Tappet
• Grind Number: XS274S
• Basic Operating RPM Range: 2,000-6,400 RPM
• Intake Duration at .050 Inch Lift: 236 deg
• Exhaust Duration at .050 inch Lift: 242 deg
• Advertised Intake Duration: 274 deg
• Advertised Exhaust Duration: 280 deg
• Lobe Separation: 110 deg
• Intake Valve Lift: 0.568 IN
• Exhaust Valve Lift: 0.578 IN
• Lifters Included: No
• Valve Springs Required: Yes
• Assembly Lubricant Included: Yes
• Camshaft Gear Attachment: 3-Bolt
• Camshaft Material: Cast Iron
• Lifter Type: Solid Flat Tappet
• Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
• Cam and Lifter Kit Upgrade: CL11-677-4
• K-Kit Upgrade: K11-677-4
• SK-Kit Upgrade: SK11-677-4