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HARMONIC BALANCERS
      Chevrolet Big Block 396-502
Elastomer Kit
Fluidampr Harmonic Balancers
Two models available:
• Traditional Fluidampr is a steel balancer that meets SFI specifications;
• The CT Gold model offers centering technology to allow the crank to be balanced with the Fluidampr,
and is also SFI-approved.
Powerbond Harmonic Balancers
Two types of balancers are available:
• SS Race Series balancers are SFI-approved. • Street Series models not SFI-approved.
 Part No.
  Description
  ATI918980-76
 Ring Kit, 6" OD 3 Ring 70/60/70 Durometer
     Part No.
   Model
  Engine
   Diameter
   Balance
  SFI-Approved
   FLU800101
 Fluidampr
396-427
 8"
  Internal
 Yes
   FLU800111
  Fluidampr
 454-502
 8"
 External
  Yes
   FLU720121
  Fluidampr
 396-454
 7-1/4"
 Internal
  Yes
   FLU620111
   Fluidampr
  396-427
  6-1/4"
  Internal
  Yes
      Part No.
 Model
 Engine
 Diameter
  Balance
  SFI-Approved
   PBBPB1018-N
Claimer, Non-SFI
 454
 7.990"
  External
 No
  PBBPB1018-ST
Street Series
 454
 8.000"
 External
  No
  PBBPB1211-N
Claimer, Non-SFI
 396-427
 7.990"
  Internal
   No
   PBBPB1211-ST
Street Series
 427
 8.000"
  Internal
 No
  PBBPB1018-SS
Race
 454
 8.000"
 External
  Yes
  PBBPB1019-SS
Race
 427-454
 7.000"
 Internal
  Yes
  PBBPB1211-SS
Race
 427
 8.000"
  Internal
   Yes
            Pro/Street
Pro/Street balancers feature a nodular iron construction, pressure-bonded elastomer 3000 lbs. separation force, bolt-on counterweights, machined to exact tolerances, 60 degrees of permanent easy-to-read timing marks. Not SFI certified.
Pro/Sport
Pro/Sport balancers are fully machined from high-quality carbon steel, with pressure-bonded elasto- mer 3000 lbs. separation force, positively retained outer inertia ring, accurately balanced, spin tested to 12,000 rpm, removable counterweights, highly polished and finished in a durable baked enamel finish. Meets SFI Spec. 18.1.
 Part No.
Model
  Engine
 Diameter
Balance
 Weight
 SFI
  PRH24263
Pro/Street
  396-427
 8.00"
Internal
 13.50 lbs.
  No
  PRH24264
Pro/Street
 454
  8.00"
 External
 14.13 lbs.
  No
        Part No.
Model
  Engine
 Diameter
Balance
 Weight
 SFI
  PRH34263
Pro/Street
  396-427
 7.01"
Internal
 12.97 lbs.
  Yes
  PRH34264
Pro/Street
 454
  7.01"
 External
 14.13 lbs.
  Yes
      2021-22 ENGINE BUILDER CATALOG 233
  CHEVROLET BIG BLOCK
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