SMALL-BLOCK BALANCERS AND PULLEYS

Balancers

12551537

  • Engine Application:1969-up 305 and 350; 90V-6 competition
  • 6.750” Outer Diameter
  • Smaller size for limited clearance
  • Timing mark is 10 degrees before keyway centerline
  • Use with timing pointer P/N 3991435

19301706

  • Engine Application: 1970-74 350; ZZ6 and CT 400 crate engine
  • 8” outer diameter
  • Nodular iron
  • Inertia ring is 1-11/16” wide
  • For externally balanced engines
  • Use with timing pointer P/N 3991436

12498008

  • Engine Application: 383 crate engine with one-piece crank seal
  • 8" outer diameter
  • Counterweight can be removed for neutral balance
  • For externally balanced engines
  • Use with 383 engine components and crankshaft P/N 12489436

24502534

  • Engine Application: All racing. Accepts standard pulleys
  • 7.074" outer diameter
  • Specially tuned for racing applications up to 9,000 rpm
  • Uses standard crank hub diameter

24502535

  • Engine Application: All racing
  • 7.074" outer diameter
  • Specially tuned for racing applications
  • Use with large-diameter 1.598" crankshaft hub

Pulleys and Bolts

19355269

Crankshaft Pulley, 6-5/8"

  • Two-groove, high-rpm 6-5/8" pulley
  • For engines with short water pump

NOTE: Can be used with a water pump pulley and belt P/N 9433722 without an idler pulley or alternator.


9440024

Crankshaft Bolt

  • Positive retention 7/16"-20 x 2-1/4" bolt
  • For engines with tapped crank snouts
  • Use with washer P/N 14001829

NOTE: Can be used with a water pump pulley and belt P/N 9433722 without an idler pulley or alternator.

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.