EP-1803 Optispark LT1 Distributor for Pontiac Firebird 5.7L 1993-1994

The EP-1803 is a standard-specification Optispark LT1 distributor for the Pontiac Firebird Formula and Trans Am with the LT1 5.7L V8 (1993-1994). This is the direct OEM-replacement counterpart to the billet-housing EP-83811, providing complete Optispark assembly replacement at a standard price point for general Firebird LT1 service.

The Pontiac Firebird Formula and Trans Am with the LT1 represent the performance pinnacle of the third-generation Firebird. The LT1's Optispark ignition system is a defining feature of these vehicles, providing the precise ignition timing that enables the LT1's high specific output. Like all LT1 Optispark units, the EP-1803 is a crankshaft-referenced optical sensor system with no field-adjustable timing -- replacement is a straightforward swap that requires water pump removal but no timing adjustment.

The EP-1803 ships complete with optical sensor, cap, and rotor for direct replacement of the factory Firebird LT1 Optispark.

Every EP GM distributor is manufactured under ISO 9001:2015 certified quality management. Each unit is individually tested for cap-to-rotor alignment, pickup or optical sensor signal function, shaft seal integrity, and electrical connector specification before shipment. CE-EMC electromagnetic compatibility certification, UL listing, and UKCA conformity mark confirm compliance across all major export markets. Units ship complete with cap and rotor -- no additional components required for installation.

EP (Ever-Power) has manufactured OEM-grade automotive ignition distributors since 1999, exporting to aftermarket distributors and repair shops across North America, Europe, Australia, and Southeast Asia. Our GM Distributor series covers the complete range of GM EFI replacement distributors -- from the LT1 Optispark units used in 1992-1994 Camaro, Corvette, and Firebird to the Vortec TBI/EFI distributors serving C/K pickup trucks, SUVs, and vans across 1987-1997.

ISO 9001:2015 quality management, CE-EMC certification, UL listing, and UKCA conformity cover every unit we ship. Each distributor is individually tested for cap-to-rotor alignment, pickup signal function, and shaft seal integrity before shipment. Units ship complete with distributor cap, rotor, and all necessary sensors for direct OEM replacement. EP is part of the Ever-Power Group, also producing agricultural gearboxes and a comprehensive range of mechanical transmission products.

Disclaimer: Chevrolet, GMC, Pontiac, Buick, Cadillac, Isuzu, and other vehicle brand names and OEM part numbers are used for product compatibility reference only. EP (Ever-Power) products are high-quality aftermarket replacement parts and are not affiliated with original vehicle or component manufacturers. Always verify fitment using the OEM part number on your existing distributor before ordering. All trademarks remain the property of their respective owners.

LMC