Edelbrock.com - Chevrolet 348/409 Camshafts and Matching Components

VALVETRAIN - Chevrolet 348/409 Camshafts & Lifter Kits

Rollin' Thunder Performer RPM Hydraulic Roller Camshafts
Rollin' Thunder Performer RPM cams feature more aggressive profiles than conventional cams without excessive valve overlap and provide power from 1500 to 6500 rpm. They are used in our 435 hp & 440 hp E-Tec crate engines, our 460 hp Signature Series 383 crate engine and our 650 hp & 675 hp 555 crate engines. Roller tappets reduce friction, virtually eliminate break-in problems, and permit higher valve velocities for increased performance. Intended for use with OEM or Edelbrock hydraulic roller tappets.

Click on part number to see cam specs.

348/409 "W-series" (1961-65)

Engine

Part #

Valve Springs (B)

True Roller Timing Chain

Dyno-Matched Intake Manifolds

Repl. Lifters

Pushrods

Important Comments

Rollin' Thunder Performer RPM Hydraulic Roller

348/409 "W-series" (1961-65)

2268*

#2268

ENGINE: Chevrolet 348/409 "W-series" (1961-65)
RPM RANGE: 1500-6500

Duration at 0.006" Lift: Intake: 298° Exhaust: 300°

Duration at 0.050" Lift: Intake: 232° Exhaust: 238°

Lift at Cam: Intake: .374" Exhaust: .383"

Lift at Valve: Intake: 0.636" Exhaust: 0.651"

Timing at 0.050" lift: Open Close

Intake: 8.5° BTDC 43.5° ABDC

Exhaust: 55.5° BBDC 2.5° ATDC

Centerlines: Lobe Separation - 112° Intake Centerline - N-a

Note: N-a

CAUTION: N-a

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N-a

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Use with high stall torque converter only.

* Not legal for sale or use on pollution controlled motor vehicles.

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