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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-K51-226-4
Xtreme Energy 294H Hydraulic Flat Tappet Camshaft Complete Kit Lift .519"/.524" Duration 294°/306° RPM Range 2800-6500
$70295
Ships on 10/23/2026
Lowest Price GuaranteePontiac 265-455ci V-8 1955-81
- Xtreme Energy 294H Hydraulic Flat Tappet Camshaft Complete Kit
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 1 Year Limited Warranty
Pontiac; Super Duty; SD; SD455; HO; 455 HO; Trans-Am; Catalina; Firebird; Formula; 421; 455; 400; 428; 350; 265; 301; 370; 389; 301; 287; 317; 347; Ram Air; Ram Air IV; Ram Air III; Bonneville; Grand Prix; LeMans; Parisienne; Grand Am; Century; Regal;
Pro Street/bracket, good intake, headers, gear, 3500+ stall.
Lift .519"/.524"
Duration 294°/306°
RPM Range 2800-6500
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 Kit
BrandCOMP CAMS
Package Height5.5
Package Width10.5
Package Length25.8
Weight23.3 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)256
Cam StyleHydraulic flat tappet
Grind NumberP XE294H-10
Exh. Duration Advertised (Deg)306
Locks IncludedYes
Engine Make/SizePontiac 265-455
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.519
Int. Duration @ .050 In. (Deg)250
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,800-6,500
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.519 in (13.183 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)294
Lobe Separation (Deg)110
Rpm Range2800-6500
Lifter StyleHydraulic flat tappet
Advertised Duration294 int./306 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.524
Valve Springs IncludedYes
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.519 int./0.524 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.524 in (13.31 mm)
Advertised Intake Duration294
Outside Diameter Of Outer Spring1.437 in (36.5 mm)
Intake Duration At 050 Inch Lift250
Exhaust Duration At 050 Inch Lift256
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration306
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift250 int./256 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK51-226-4
Package Qty1
Package TypeEA
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