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12561166 - Production LS1 / LS6 Gen III Block - 3.89" Bore, 9.240" Deck, 2.56" Mains, 6 Bolt Main, Aluminum Block

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12561166
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Availability: Item has been discontinued and is no longer available

Description

This aluminum block is used on the 2001 LS6 Corvette. Use with casting P/N 12561168.

The LS Series cylinder block is the foundation for the serious performance achievements that are driving a new generation of street and racing enthusiasts. Features include a deep-skirt casting (the block side extends below the crankshaft centerline); 6-bolt cross-bolted main caps, strong and lightweight aluminum alloy casting (most productioin blocks) and provisions for the latest in engine control management. The cam-in-block configuration brings inherent torque to every LS engine, with production-based blocks capable of supporting combinations of 500 horsepower or more. The corvette ZR1'sunique 6.2L block, for example, supports the engine's 638-horsepower rating. GM Performance Parts' high-performance inon LSX cylinder block supports more than 2000 forced-inductioni horses!

Whether you're building a mild street engine or an Outlaw racing engine, starting with a strong LS cylinder block brings the assurance that you'll amke the power you need with a durable foundation.

LS1/LS6 5.7L Bare Block

  • Direct replacement for 2001-2004 LS1 and LS6 Corvette 5.7L
  • Production 319-T5 aluminum block with iron sleeves
  • Production oiling system
  • 6-bolt iron main bearing caps
  • 9.240" deck height
  • Use LS1/LS6 cylinder heads only
  • 3.89" finished bore (99.0mm)
  • No provision for Active Fuel Management
  • Tested to over 400 horsepower!

Application List

Universal

Details

  • 12561166
  • 12561166
  • Chevrolet Performance Parts
  • Item has been discontinued and is no longer available
  • New

Categories

Shipping Information

  • Item Requires Shipping
  • 150.0 lbs.
  • W23.3000” x H19.5000” x L27.8000”

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