.

RPM Range: 2000-6300

Advertised Duration: 290/290

Duration @ .050: 225/235

Lift: .530/.550

Lobe Center: 114c 

BB Chevy V8 67-93 396-402-427-454

BB Chevy Hydraulic Flat Tappet Cam & Lifters- Strong upper mid-range cam. Rough idle.Needs 4bbl., headers and gears.

Kit includes:

CAMSHAFT

LIFTERS

MATCHED VALVE SPRINGS

VALVE LOCKS AND RETAINERS

TIMING CHAIN SET AND LOCKING PLATE

CAMSHAFT BREAK-IN OIL

Chet Herbert Cams has been grinding cams since 1949. Performance, high quality and a low price. Everything you want in a performance cam and more. Cams for your tow rig, street performance, street-strip or race. If you need assistance picking out a cam please call our tech line at (704)732-2400.

Tech Tip: When checking for valve spring coil bind, also check for retainer to valve guide clearance. There should be a minimum of .150? clearance between the guide (or valve seal if used) and the retainer.

Tech Tip: Flat tappet cams (hyd. or solid lifter) require to be broken in for the first 30 minutes of operation at 2000 rpm. During this time do not let the engine idle. If adjustments are required during this break-in period, you must shut the engine down completely. If using a spring with over 130 lbs. seat (or over 330 open), you should remove the inner spring during break-in.

ATTENTION!!
IMPORTANT WARRANTY INFORMATION ON ALL HERBERT FLAT TAPPET CAMS.
 

• If you follow the proper installation instructions your new Chet Herbert cam will give you the type of performance that has won races and made us leaders in valve train innovation since 1949.

  
  
  Sincerely,
  Herbert Tech Department

  Perfect for street performance, street-strip or pro-street. These cams offer the power and torque increases that are available only with roller cams, plus the low maintenance of a hydraulic cam. If you need more assistance picking out a cam please call our tech line at (704)732-2400.