Xtreme Energy 4/7 Swap 250/256 Hydraulic Flat Cam Chevrolet Big Block 396-454

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. Vehicle Specific

• Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts

Attributes:

• Brand Name: COMP Cams
• GTIN: 00036584096658
• Advertised Exhaust Duration: 306
• Advertised Intake Duration: 294
• Amazon ASIN: B001G7A8XK
• Assembly Lubricant Included: Yes
• Basic Operating RPM Range: 2,800-7000
• C.A.R.B. E.O. Number: N/A
• 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.
• C.A.R.B. Exempt for On-Road Vehicles?: No
• 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. Exemption Reason: N/A
• Cam Type: Hydraulic Flat Tappet
• Camshaft Gear Attachment: 3-Bolt
• Camshaft Material: Cast Iron
• Camshaft Series: Xtreme Energy 4 and 7 Swap Firing Order
• Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
• Exhaust Duration at .050 inch Lift: 256
• Exhaust Valve Lift: 0.593
• Grind Number: XE294H-10
• Intake Duration at .050 Inch Lift: 250
• Intake Valve Lift: 0.588
• Lifter Type: Hydraulic Flat Tappet
• Lifters Included: No
• Lobe Separation: 110
• Usage: Street/Performance
• Valve Springs Required: Yes

Extended Information:

• Country of Origin: US
• Emissions : EPA Eligible

Packing Information:

• Quantity of Each: 1
• Package UOM: EA
• Dimension: 24.5 x 3 x 2.75 inches
• Weight: 10.25 POUNDS