COMP Cams 11-671-4 Nostalgia Plus 239/246 Solid Flat Cam for Chevrolet Big Block 396-454

With 0.544 IN intake and 0.539 IN exhaust valve lift, the COMP Cams 11-671-4 Nostalgia Plus camshaft delivers the signature sound of a GM LS6 cam with modern tight lash for Chevrolet 396-454 c.i. big-block engines. This solid flat tappet features an N+LS6S grind profile operating from 1,800 to 6,500 RPM with 112-degree lobe separation. Cast iron construction and 3-bolt gear attachment provide durable performance for street and competition applications.

• Assembly Lubricant Included: Yes
• Camshaft Gear Attachment: 3-Bolt
• Camshaft Material: Cast Iron
• Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
• Cam and Lifter Kit Upgrade: CL11-671-4
• K-Kit Upgrade: K11-671-4
• Lifter Type: Solid Flat Tappet
• SK-Kit Upgrade: SK11-671-4
• Camshaft Series: Nostalgia Plus
• Usage: Street/Performance
• Cam Type: Solid Flat Tappet
• Grind Number: N+LS6S
• Basic Operating RPM Range: 1,800-6,500 RPM
• Intake Duration at .050 Inch Lift: 239 deg
• Exhaust Duration at .050 inch Lift: 236 deg
• Advertised Intake Duration: 276 deg
• Advertised Exhaust Duration: 283 deg
• Lobe Separation: 112 deg
• Intake Valve Lift: 0.544 IN
• Exhaust Valve Lift: 0.539 IN
• Lifters Included: No
• Valve Springs Required: Yes
• C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle.
• C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle.
• C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
• C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.