1988 1989 1990 1991 1992 ALL HYDRAULIC ROLLER CAM

Part Number: 2221

ALL  HYDRAULIC ROLLER CAM - Part Number 2221
1987-92 Camshaft Kit Performer RPM. Ford 289-302 V8. Edelbrock Performer RPM Hydraulic Roller Lifter cams are dyno-matched to Performer RPM Power Packages. They feature more aggressive profile than conventional cams without excessive valve overlap and are used in our 435 and 440 hp E-Tec crate engines. Roller tappets reduce friction, virtually eliminate break-in problems, and permit higher valve velocities for increased performance with good manifold vacuum and driveability. Intended for use with OEM or Edelbrock hydraulic roller tappets. Important Application Information: Performer RPM, Performer RPM Hydraulic Roller and Torker-Plus 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. Important Notes: Our cam warranty will be honored only if the recommended Edelbrock Sure Seat Valve Springs are used. If a warranty problem does arise, the end flap or label from the Edelbrock Sure Seat Valve spring box along with store receipt must be sent with warranty claim. When changing your cam, it's essential to change your timing chain. We recommend Performer-Link Tru-Roller Timing Sets or Accu-Drive Cam Gear Drives. Duration: Advertised Intake - 298 degree Advertised Exhaust - 302 degree @.050 Intake - 227 degree @.050 Exhaust - 234 degree Lift: @Cam Intake - .325 @Cam Exhaust - .325 @ Valve Intake - .520 @Valve Exhaust - .520 Timing @ .050: Intake Open - 6 degree BTDC Intake Close - 41 degree ABDC Exhaust Open - 54 degree BBDC Exhaust Close - 0 degree ADTC Centerlines: Lobe Seps - 112 degree Intake Centerline - 107 degree True Roller Timing Chain - 7811/7820/7335 Dyno-Machined Intake Manifolds - 7121/7521 Replacement Lifters - 97453 Important Comments - Use only stock ratio rocker arms. Not legal for sale or use on pollution controlled motor vehicles.
Performer RPM Ford 289-302 V8 1988 1989 1990 1991 1992

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