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Performance Camshafts, Lifter Kits and Matching Valvetrain for 500+ (1965-95 Mark IV &?Gen V) Chevy - Edelbrock.com
Camshaft: Rollin' Thunder Hydraulic Roller
Part #: #2263
Vehicle Type: CHEVROLET
Engine Application: 500+ (1965-95 Mark IV &?Gen V)
RPM Range: 1500-6500
DURATION AS ADVERTISED
INTAKE: 308°
EXHAUST: 315°
DURATION @ .050
INTAKE: 248°
EXHAUST: 256°
LIFT @ CAM (Lobe)
INTAKE: 0.371"
EXHAUST: 0.381"
LIFT @ VALVE
INTAKE: 0.632"
EXHAUST: 0.648"
LOBE SEPERATION: 112°
INTAKE CENTERLINE: 109.5°
IDLE VACUUM @ 1000 RPM: 11"
The information below is for verification of
opening and closing events.
INTAKE TIMING @ .050" LIFT:
Opens: 14.5° BTDC
Closes: 62.5° ABDC
EXHAUST TIMING @ .050" LIFT:
Opens: 53.5° BBDC
Closes: 13.5° ATDC
OPTIONAL VALVE SPRINGS: -
CAM FEATURES: This camshaft works great when matched with Victor Jr. intake manifold #2902 and E-CNC cylinder heads #79559; this combo produces 676 HP / 649 ft.-lbs. of torque. Not for 1965-66 B/B Chevys requiring a grooved rear cam journal.
INSTALLATION NOTES: Use Edelbrock Performer-Link Timing Chain and Gear Set #7810 or Accu-Drive gear drive #7891. Do not use late model timing chain and gear sets that are designed for emission-controlled engines. These timing sets are machined in a retarded position and are not recommended for this camshaft installation. Edelbrock Timing Sets feature three keyways for specified timing selection. Use "0" position for most applications.
Footnote 1: Use with high stall torque converter only.
Footnote 2: Do not use dual valve springs. Use recommended valve springs with closed pressure of 120-130 lbs., open pressure of 320-340 lbs, and max lift of .700".
AMC
