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Performance Camshafts, Lifter Kits and Matching Valvetrain for 348/409 "W-series" (1961-65) Chevy - Edelbrock.com
Camshaft: Rollin' Thunder Hydraulic Roller
Part #: #2268
Vehicle Type: CHEVROLET
Engine Application: 348/409 "W-series" (1961-65)
RPM Range: 1500-6500
DURATION AS ADVERTISED
INTAKE: 292°
EXHAUST: 296°
DURATION @ .050
INTAKE: 230°
EXHAUST: 234°
LIFT @ CAM (Lobe)
INTAKE: 0.352"
EXHAUST: 0.359"
LIFT @ VALVE
INTAKE: 0.616"
EXHAUST: 0.628"
LOBE SEPERATION: 112°
INTAKE CENTERLINE: 107°
IDLE VACUUM @ 1000 RPM: 10"
The information below is for verification of
opening and closing events.
INTAKE TIMING @ .050" LIFT:
Opens: 8.0° BTDC
Closes: 42.0° ABDC
EXHAUST TIMING @ .050" LIFT:
Opens: 54° BBDC
Closes: 0° ATDC
OPTIONAL VALVE SPRINGS: -
CAM FEATURES: This camshaft works great when matched with Performer RPM intake manifold #7159, Performer carb #1412, and Performer RPM cylinder heads #60819; this combo produces 451 HP / 470 ft.-lbs. of torque. Matching Edelbrock roller tappet lifter set #97383.
INSTALLATION NOTES: Use an appropriate Timing Chain and Gear Set or gear drive that allows for the installation of the camshaft at 0° advance, or 'straight-up'.
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
