Racing Flag

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

Racing Flag

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

BIG-BLOCK PISTONS

12533507

Forged Gen-V and Gen-VI 502 replacement 

  • Engine Size: 502
  • Bore Size: 4.470"
  • Rod Length: 6.135"
  • Pin Type: Pressed
  • Compression Ratio: 8.75:1
  • Chamber Size: 118 cc
  • Ring Size: 5/64", 1/16", 3/16"

88962925

Forged 572/620 

  • Engine Size: 572
  • Bore Size: 4.560"
  • Rod Length: 6.535"
  • Pin Type: Floating
  • Compression Ratio: 9.6:1
  • Chamber Size: 118 cc
  • Ring Size: 1/16", 1/16", 3/16"

88963227

Forged 572/720R

  • Engine Size: 572
  • Bore Size: 4.560"
  • Rod Length: 6.535"
  • Pin Type: Floating
  • Compression Ratio: 12.0:1
  • Chamber Size: 118 cc
  • Ring Size: 1/16", 1/16", 3/16"

BIG-BLOCK PISTON RINGS

12523921

Standard-size ring pack for Gen-V 454 HO 

  • Bore Size: 4.250"
  • Oversize: Standard
  • Ring Thickness: 5/64", 5/64", 3/16"

12524293

Standard-size low-tension ring pack for all 502 engines

  • Bore Size: 4.470"
  • Oversize: Standard
  • Ring Thickness: 5/64", 1/16", 3/16"

12524294

Oversize low-tension ring pack for all 502 engines

  • Bore Size: 4.470"
  • Oversize: +.030"
  • Ring Thickness: 5/64", 1/16", 3/16"

12499212

Standard-size ring pack for 572 engines 

  • Bore Size: 4.560"
  • Oversize: Standard
  • Ring Thickness: 1/16", 1/16", 3/16"

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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.