Made in USA
Ultra Beast Hydraulic Cam Performance Level: 4
InfoVehicle Info Needed
CROWERPART NUMBER: 258-56919

Ultra Beast Hydraulic Cam Performance Level: 4

$27199
ShippingShips on 09/04/2026
Lowest PriceLowest Price Guarantee

Oldsmobile 260-455 1967-Up
    Ultra Beast Hydraulic Cam
  • Performance Level: 4
  • 2000-6200 RPM Range
  • 304/316 Adv. Duration
  • 520/542 Gross Lift

    Performance Level 4 - Ultra Beast - Upper mid-range to top end power. Emphasis on top end.

    Level 4 camshafts are designed for heavily modified engines. These camshaft have a definite lope at idle and are best suited for dual purpose hot street/drag strip, hot marine or oval track applications. These grinds exhibit strong mid-range to top end torque and horsepower. Headers, dual exhaust, large cfm carburetor, performance ignition and increased compression of 10.25:1 and above are required. Cylinder head modifications would be beneficial. Use with standard manual transmission or automatic with high stall torque converter. Again, close attention to proper ring and pinion and tire diameter selection is imperative.

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

    Unleash the Beast in Your Engine! The Beast series camshaft is designed specifically for the budget minded engine builder. These tried and true camshafts make an excellent all around series and feature a range of grinds to fit your needs from Mileage to Hot Street.
Part TypeCamshaft
Product LineCrower Beast Hydraulic Flat Tappet Cams
BrandCROWER
Package Height2.8
Package Width2.8
Package Length24.8
Weight10.5 PG
Part CategoryPerformance Parts
Valve Lift With Factory Rocker Arm Ratio0.520 int./0.542 exh.
Cam StyleHydraulic flat tappet
Camshaft Gear Attachment3-bolt
QuantitySold individually
Grind Number304H
Lobe Separation (Degrees)112
Advertised Intake Duration304
Basic Operating Rpm Range2,000-4,800
Intake Duration At 050 Inch Lift234
Exhaust Duration At 050 Inch Lift244
Exhaust Valve Lift With Factory Rocker Arm Ratio0.542 in.
Intake Valve Lift With Factory Rocker Arm Ratio0.520 in.
Advertised Exhaust Duration316
Advertised Duration304 int./316 exh.
Part FitmentSemi Universal
Duration At 050 Inch Lift234 int./244 exh.
Vendor Part Number56919
Package Qty1
Package TypeEA
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