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Edelbrock 2221 - Edelbrock Rollin' Thunder Hydraulic Roller Camshafts & Kits



Edelbrock 2221 - Edelbrock Rollin' Thunder Hydraulic Roller Camshafts & Kits

Part Number: 350-2221

Rollin' Thunder Hydraulic Roller Camshaft
  • Ford 289-302
  • .520''/.520'' Lift
  • 298°/302° Adv. Duration
  • 1500-6500 RPM Range
  • $265.90

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    Edelbrock 2221 - Edelbrock Rollin' Thunder Hydraulic Roller Camshafts & Kits Details

    Ford

    Cam Notes: This camshaft works great when matched with Pro-Flo XT EFI system p/n 350-3520 and Performer RPM cylinder heads p/n 350-60255; this combo produces 384 HP / 347 ft.-lbs. of torque. Matching Edelbrock roller tappet lifter set p/n 350-97453
    Use with high stall torque converter only.
    Use only stock ratio rocker arms.

    Operating Range1500-6500 RPM
    Duration Advertised298° Intake/302° Exhaust
    Duration @ .050''227° Intake/234° Exhaust
    Lift @ Valve.520'' Intake/.520'' Exhaust
    Lift @ Cam.325'' Intake/.325'' Exhaust
    Lobe Separation Angle112°
    Intake Centerline107°
    Intake Timing @ .050" Open 6° BTDC
    Close 41° ABDC
    Exhaust Timing @ .050" Open 54° BBDC
    Close 0° ATDC

    Important Application Information:
    Rollin Thunder Hydraulic Roller cams are for street high-performance and racing applications only - not for heavy vehicles. Use with Edelbrock Performer RPM heads (or other aftermarket heads), adjustable valvetrain components, screw-in studs, high performance adjustable rocker arms and at least 9.5:1 compression ratio. Headers, high-energy ignitions, lower-than-stock rear gearing and a high-performance torque converter (in auto. transmission equipped vehicles) are necessary.

    Specifications:

    Exhaust Valve Lift (in.)
    0.52
    Intake Valve Lift (in.)
    0.520
    RPM Range
    1500-6500
    Int. Duration @ .050 in. (Deg)
    227
    Exh. Duration @ .050 in. (Deg)
    234
    Int. Duration Advertised (Deg)
    298
    Exh. Duration Advertised (Deg)
    302
    Engine Make/Size
    Ford 289-302
    Lifter Type
    Hydraulic Roller
    Usage
    OEM
    Lobe Separation (Deg)
    112
    Advertised Duration
    298 int./302 exh.
    Advertised Exhaust Duration
    302
    Advertised Intake Duration
    298
    Basic Operating RPM Range
    1,500-6,500
    Cam Style
    Hydraulic roller tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    227 int./234 exh.
    Exhaust Duration at 050 inch Lift
    234
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.52
    Intake Duration at 050 inch Lift
    227
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.52
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.520 int./0.520 exh.
    Valve Springs Required
    Yes
    Manufacturer's Part Number:
    2221

    ROLLIN' THUNDER CAMSHAFTS

    Edelbrock Rollin' Thunder Camshafts are designed to improve horsepower and torque, produce a great sounding performance idle and provide sufficient vacuum at idle to support power accessories. Compared to conventional flat tappet hydraulic cams, Rollin' Thunder Camshafts have more aggressive lift profiles without excessive valve overlap that can compromise low-RPM drivability (reduced friction provided by roller tappets makes this combination of accelerated valve lift and reduced duration possible). Edelbrock Rollin' Thunder Camshafts are performance matched to Edelbrock Total Power Package components for proven performance.

    Rollin' Thunder Camshaft Features
  • Performance: Higher lift velocity and faster valve action increase horsepower and torque
  • Drivability: Great-sounding idle with excellent vacuum at idle to support power accessories
  • Durability: A roller tappet's small surface area + reduced friction + stronger camshaft material (hardend steel or iron) = long camshaft life
  • Environmental: Can use ILSAC GF-4 oil, which lowers engine emissions and does not require zinc or phosphate oil additives
  • Economy: Reduced contact friction between the lifter and camshaft increases fuel economy for better mileage potential

  • ROLLIN' THUNDER CAMSHAFT KITS
    These complete cam kits feature an Edelbrock Rollin' Thunder Hydraulic Roller Camshaft and Edelbrock Hydraulic Roller Lifters and Pushrods that are dyno-matched for a trouble-free installation. Each kit includes: camshaft, hydraulic roller lifters, lifter guides, pushrods, and hold-down spider (1987-Later applications only). Kits offer great performance gains when matched with the rest of the Edelbrock Total Power Package.
  • Complete kit gives you everything you need to upgrade your camshaft
  • Virtually eliminate break-in problems (no special break-in required over flat tappet cams)
  • Higher lift velocity and faster valve action produce superior horsepower and torque
  • Get more horsepower and torque without sacrificing idle quality and manifold vacuum
  • Reduced friction improves fuel economy

  • Items You Need
    *Not legal for sale or use on pollution-controlled motor vehicles