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 BOWTIE SPORTSMAN BLOCKS

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STANDARD-DECK BOWTIE SPORTSMAN BLOCK

  • 1-piece rear main seal 
  • CNC-machined cast-iron 4-bolt block
  • 4.494” finished bore   
  • 4.600” max bore
  • Tested to 800 horsepower

19212191

STANDARD-DECK BOWTIE SPORTSMAN BLOCK

  • 2-piece rear main seal
  • CNC-machined cast-iron 4-bolt block
  • 4.494” finished bore
  • 4.600” max bore 
  • Tested to 800 horsepower

19212193

TALL-DECK BOWTIE SPORTSMAN BARE BLOCK

  • 1-piece rear main seal
  • CNC-machined cast-iron 4-bolt block
  • 4.494” finished bore   
  • 4.600” max bore 
  • Tested to 800 horsepower

19212194

TALL-DECK BOWTIE SPORTSMAN BARE BLOCK

  • 2-piece rear main seal
  • CNC-machined cast-iron 4-bolt block
  • 4.494” finished bore   
  • 4.600” max bore 
  • Tested to 800 horsepower  

19212195

TALL-DECK 572 BOWTIE SPORTSMAN BARE BLOCK

  • 1-piece rear main seal
  • CNC-machined cast-iron 4-bolt block
  • 4.560” fully honed bore 
  • Power-coated Chevy orange
  • 5 windage tray bolts installed 
  • 4.600” max bore 
  • Tested to 800 horsepower
  • This is the block used for our 572 engines

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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.