TIMING CHAINS AND SPROCKETS

12588670 

LS2 Timing Chain 

  • Production LS2 damper
  • Will not fit LS1 and LS6 blocks fitted with P/N 88958607 (P/N 88958607 is no longer serviced)
  • For use with standard oil pumps

12581276 

Timing Chain Damper Style 

  • Production LS7 damper 1.1mm thinner than P/N 12588670
  • For use with LS7 2-stage oil pump

12576407 

1X Camshaft Sprocket

  •  Fits all LS cams with 3-bolt design 1X camshaft gear
  • 3-bolt design; uses 3 bolts P/N 12556127

12586481

Camshaft Sprocket 

  •  Fits all LS cams with 3-bolt design
  • 4X camshaft gear
  • 3-bolt design; uses 3 bolts P/N 12556127

12585994 

VVT Camshaft Sprocket 

  • Combination camshaft sprocket and VVT activator
  • Production on 2007-2008 Cadillac Escalade L92 engines
  • Single-bolt design; use bolt P/N 12588151.
  • 4X camshaft gear

12556582

Crankshaft Sprocket

  • Fits non-LS7/-LS9 applications
  • For standard single-stage oil pumps
  • Works with both cam sprockets P/N 12576407 and 12586481

12581278 

Crankshaft Sprocket

  • For use with 2-stage LS7 or LS9 oil pump only
  • Works with cam sprockets P/N 12576407 and P/N 12586481

12646386 

Timing Chain 

  • Fits 1997-2009 LS-based engines

12626407 

Timing Chain Tensioner 

  • Requires 1 per engine
  • Includes retainer and bolts
  • For L92 and LS3 engines

12556127 

Camshaft Sprocket Bolt 

  • For use with 3-bolt (non-VVT) cams
  • For LS1, LS2, LS6, LS9 and early LS7 engines

11561283 

Camshaft Sprocket Bolt 

  • For use with single-bolt cams and non-VVT timing covers
  • For 2008-2009 LS3 and LS7 engines

12682000 

Camshaft Sprocket Bolt 

  • Combination bolt and valve for Variable Valve Timing (VVT) engines     
  • For L92 engines
  • Use with VVT camshaft sprocket P/N 12585994

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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.