COMP Cams - 01-427-8
Xtreme Energy 248/254 Hydraulic Roller Cam for Chevrolet Big Block GEN VI
Works well with large c.i. engines. Great for bracket racing, with all upgraded parts, needs 3500+ stall.
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts, the Xtreme Energy grind family offers gains in torque and horsepower while still delivering adequate vacuum for power brakes and other vacuum dependent accessories. Xtreme Energy camshafts work great in carbureted applications, but offer the best performance with aftermarket intake manifolds, lower gear ratios, headers and free flowing exhaust.
Basic Operating RPM Range: 3,000-6600
Intake Duration at .050 Inch Lift: 248
Exhaust Duration at .050 inch Lift: 254
Advertised Intake Duration: 300
Advertised Exhaust Duration: 306
Lobe Separation: 114
Intake Valve Lift: 0.56
Exhaust Valve Lift: 0.58
Lifters Included: No
Valve Springs Required: Yes
Assembly Lubricant Included: No
Camshaft Gear Attachment: 3-Bolt
Camshaft Material: Austempered Ductile Iron
Engine Family: Chevrolet GEN VI 454 and 502 c.i. 8 Cylinder (1996-1999)
Cam and Lifter Kit Upgrade: CL01-427-8
K-Kit Upgrade: K01-427-8
Lifter Type: Hydraulic Roller
SK-Kit Upgrade: SK01-427-8
Amazon ASIN: N/A
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 Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of 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 Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?: No
C.A.R.B. Exemption Reason: N/A
C.A.R.B. E.O. Number: N/A
Camshaft Series: Xtreme Energy
Usage: Street/Performance
Cam Type: Hydraulic Roller
Grind Number: XR300HR-14
