GM LT1 Optispark Distributor with Wire Harness - Replaces OEM# 10457702

This Optispark Distributor is an OEM replacement for you LT1/LT4 Engines, it also has been improved for increased durability and high performance.

This unit has been built with the best components available and has been factory tested, satisfaction guaranteed!

Features a RED CAP and machined aluminum housing.


  • Application: Fits late 1994 & 1995-1997 GM LT1 Chevy 5.7L V8 Engines (see notes bellow).

94-96 Corvette LT1/LT4.

94-97 Camaro Z28, SS.

95-97 Pontiac Firebird Formula, Trans-am.

94-96 Chevy Caprice/Impala SS.

94-96 Buick Roadmaster.

  • Type: OEM Replacement.
  • Color: Red Cap.
  • Wire Harness: Included.
  • Terminals: Brass.
  • Instructions: Not Included, professional installation recommended.
  • Note: Will NOT fit  92,93 & early 94, will fit early 94 if you convert to the later front cover. GM changed the drive design in mid 94 due to failures and added a vacuum port to resolve internal condensation problems,this distributor has the GM vacuum port update.




    Check out our store for other ignition products and more parts!