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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-K12-564-4
Nitrous HP Hydraulic Flat Tappet Camshaft Complete Kit Chevy Small Block 262-400ci 1955-98 Lift: .487"/.501"
$73795
Ships on 10/22/2026
Lowest Price GuaranteeChevy Small Block 262-400ci 1955-98
- Nitrous HP Hydraulic Flat Tappet Camshaft Complete Kit
- Lift: .487"/.501"
- Duration: 274°/292°
- Lobe Separation Angle: 113°
- RPM Range: 2400-6500
Street / Strip applications, 125+ HP kit or medium blower, rough idle.265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10
Street/strip applications, 125+ hp kit or medium blower, 2500+ stall. Rough idle.
Chevy Small Block 262-400ci 1955-98
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.
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Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.0
Package Width11.5
Package Length25.0
Weight23.2 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)244
Cam StyleHydraulic flat tappet
Grind NumberCS NX274H-13
Exh. Duration Advertised (Deg)292
Locks IncludedYes
Engine Make/SizeChevy Small Block (262-400)
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.487
Int. Duration @ .050 In. (Deg)230
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,400-6,500
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.487 in (12.37 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)274
Lobe Separation (Deg)113
Rpm Range2400-6500
Lifter StyleHydraulic flat tappet
Advertised Duration274 int./292 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.501
Valve Springs IncludedYes
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.487 int./0.501 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.501 in (12.725 mm)
Advertised Intake Duration274
Outside Diameter Of Outer Spring1.43 in (36.3 mm)
Intake Duration At 050 Inch Lift230
Exhaust Duration At 050 Inch Lift244
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration292
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift230 int./244 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK12-564-4
Package Qty1
Package TypeEA
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