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

Xtreme Energy™ 4/7 Swap 250/256 Hydraulic Flat Tappet Cam for Chevy Big Block 396-454 Pro Street/bracket racing. Needs good intake, headers, gears and a 3200+ stall.
In stock
SKU
11-652-47
$336.95

BBC - 1965-66 396 c.i. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a camshaft with the oiling groove, please call us at 1-800-999-0853 or click here to contact us, and we will assist you with placing an order.

Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
RPM Operating Range: 2,800-7000
Grind Number: XE294H-10
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Xtreme Energy 4 and 7 Swap Firing Order
Usage: Street/Performance
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 294
Advertised Exhaust Duration: 306
Intake Duration at .050 Inch Lift: 250
Exhaust Duration at .050 Inch Lift: 256
Intake Valve Lift: 0.588
Exhaust Valve Lift: 0.593
Lobe Lift Intake: 0.346
Lobe Lift Exhaust: 0.349
Lobe Separation: 110
Intake Centerline: 106
Exhaust Close ATDC: 39
Intake Open BTDC: 41
Exhaust Open BBDC: 87
Intake Close ABDC: 73
Camshaft Gear Attachment: 3-Bolt
Component Part Number
Break-In Lube: 159
Distributor Gears: 12200
Lifter Kit: 812-16  /   858-16
Steel Retainers: 741-16  /   732-16
Timing Set: 2100  /   7100
Valve Locks: 612-16
Valve Seals: 505-16
Valve Springs: 924-16  /   930-16