COMP Cams 11-678-5 Xtreme Energy 244/252 Solid Flat Cam for Chevrolet Big Block 396-454

Replacing the original camshaft, the COMP Cams 11-678-5 is an Xtreme Energy series solid flat tappet camshaft for 8-cylinder big block engines with intake valve lift of 0.59 inches and exhaust valve lift of 0.598 inches. This cast-iron camshaft delivers 282 degrees of advertised intake duration and 290 degrees exhaust duration, with 244 and 252 degrees at .050 inch lift respectively. For 1967-1996 applications, a 3-bolt gear attachment and 110-degree lobe separation provide compatibility. Note: 1965-66 models with an oiling groove in the rear journal require special ordering.

• Exhaust Valve Lift: 0.598 IN
• K-Kit Upgrade: K11-678-5
• Lifter Type: Solid Flat Tappet
• SK-Kit Upgrade: SK11-678-5
• Camshaft Series: Xtreme Energy
• Usage: Street/Performance
• Cam Type: Solid Flat Tappet
• Lifters Included: No
• Valve Springs Required: Yes
• Assembly Lubricant Included: Yes
• Camshaft Gear Attachment: 3-Bolt
• Camshaft Material: Cast Iron
• Cam and Lifter Kit Upgrade: CL11-678-5
• Grind Number: XS282S
• Basic Operating RPM Range: 2,400-6,800 RPM
• Intake Duration at .050 Inch Lift: 244 deg
• Exhaust Duration at .050 inch Lift: 252 deg
• Advertised Intake Duration: 282 deg
• Advertised Exhaust Duration: 290 deg
• Lobe Separation: 110 deg
• Intake Valve Lift: 0.59 IN
• Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)