Magnum 305H Hydraulic Flat Tappet Camshaft Complete Kit Lift .525"/.525" Duration 305°/305° RPM Range 3000-6500
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-K51-241-4

Magnum 305H Hydraulic Flat Tappet Camshaft Complete Kit Lift .525"/.525" Duration 305°/305° RPM Range 3000-6500

$68695
ShippingShips on 10/23/2026
Lowest PriceLowest Price Guarantee

Pontiac 265-455ci V-8 1955-81
    Magnum 305H Hydraulic Flat Tappet Camshaft Complete Kit
    Lift .525"/.525"
    Duration 305°/305°
    RPM Range 3000-6500

    Racy idle. Bracket racing cam. Need 10.5:1 compression and 3500+ stall. Low gear ratio.

    Operating Range:3000-6500 RPM
    Duration Advertised:305° Intake / 305° Exhaust
    Duration @ .050' Lift:253° Intake / 253° Exhaust
    Valve Lift w/1.5 Rockers:.525' Intake / .525' Exhaust
    Lobe Separation Angle:110°

    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;


    Need Info

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 Height5.2
Package Width10.5
Package Length25.3
Weight23.35 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)253
Cam StyleHydraulic flat tappet
Grind NumberP 305H-10
Exh. Duration Advertised (Deg)305
Locks IncludedYes
Engine Make/SizePontiac 265-455
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.525
Int. Duration @ .050 In. (Deg)253
Assembly Lubricant IncludedYes
Basic Operating Rpm Range3,000-6,500
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.525 in (13.335 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)305
Lobe Separation (Deg)110
Rpm Range3000-6500
Lifter StyleHydraulic flat tappet
Advertised Duration305 int./305 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.525
Valve Springs IncludedYes
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.525 int./0.525 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.525 in (13.335 mm)
Advertised Intake Duration305
Outside Diameter Of Outer Spring1.437 in (36.5 mm)
Intake Duration At 050 Inch Lift253
Exhaust Duration At 050 Inch Lift253
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration305
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift253 int./253 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK51-241-4
Package Qty1
Package TypeEA
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