
COMP CAMSPART NUMBER: 249-11-602-4
Big Mutha" Thumpr Hydraulic Flat Tappet Camshaft Lift .522"/.507" Duration 295/312 RPM Range 2300 to 6200
$30995
2 left in stockChevy 396-454ci Big Block 1965-96
- Big Mutha' Thumpr Hydraulic Flat Tappet Camshaft
- 3 Grinds To Fit All Of Your Performance Needs
- Unique Design
- Maximizes Sound And Mid To High RPM Power
- Ensures Safe Piston-To-Valve Clearance
- Proven To Generate 25+ RWHP Gains
- Does Not Compromise Durability
- 1 Year Limited Warranty
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Lift .522"/.507"
Duration 295/312
RPM Range 2300 to 6200
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft
BrandCOMP CAMS
Package Height3.0
Package Width3.0
Package Length24.4
Weight10.85 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)257
Cam StyleHydraulic flat tappet
Grind Number295TH7
Exh. Duration Advertised (Deg)313
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.522
Int. Duration @ .050 In. (Deg)243
Basic Operating Rpm Range2,300-6,200
Intake Valve Lift0.522 in (13.259 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)295
Lobe Separation (Deg)107
Rpm Range2300-6200
Advertised Duration295 int./312 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.507
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.522 int./0.507 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lift0.507 in (12.878 mm)
Advertised Intake Duration295
Intake Duration At 050 Inch Lift243
Exhaust Duration At 050 Inch Lift257
Advertised Exhaust Duration312
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift243 int./257 exh.
Valve Springs RequiredYes
Vendor Part Number11-602-4
Package Qty1
Package TypeEA
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