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PARTS INTENDED FOR COMPETITION USE ONLY.
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BIG-BLOCK BOWTIE SPORTSMAN BLOCKS

19212192

STANDARD-DECK BOWTIE SPORTSMAN BLOCK

Chevrolet Performance Big-Block Bowtie Sportsman Engine Block Top Front View
Chevrolet Performance Big-Block Bowtie Sportsman Engine Block Top Rear View
  • 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

Chevrolet Performance Big-Block Bowtie Sportsman Engine Block 2-Piece Rear Main Seal View
Chevrolet Performance Big-Block Bowtie Sportsman Engine Block Machined Bottom View
Chevrolet Performance Big-Block Bowtie Sportsman Engine Block Splayed Main Cap View
  • 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

Chevrolet Performance Big-Block Tall Deck Sportsman Bare Engine Block Top Front View
Chevrolet Performance Big-Block Tall Deck Sportsman Bare Engine Block Bottom Rear View
Chevrolet Performance Big-Block Tall Deck Sportsman Bare Engine Block Machined Lifter Valley Detail View
Chevrolet Performance Big-Block Tall Deck Sportsman Bare Engine Block 1-Piece Rear Main Seal View
  • 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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Future GM Technicians Posing for a Picture with Dale Earnhardt Jr.

Bring Us Your Talent

Nobody knows automotive like Dale Earnhardt Jr. — so who better to share advice with aspiring auto techs?

Technician Stories

Technician Stories
BLOCK-Module-Asset-BFTT-alt

The BLOCK

Visit TheBLOCK.com for a behind-the-scenes look at the world of Chevrolet Performance from an enthusiast's point of view.

Learn More

Learn More
Four Chevrolet Camaro Sports Cars Parked on Display in a Showroom

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Want to know the latest in Chevrolet Performance news and more? Connect with us via email and social media today.  

Sign Up

Learn More
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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.

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.