EP-1878 Electronic Distributor for Chevrolet K3500 7.4L V8 Big Block (Replaces 1103880)

The EP-1878 is a complete electronic distributor for Chevrolet and GMC heavy duty trucks and vans equipped with the 7.4L (454 CID) big block V8 engine. The 7.4L big block is the most powerful engine offered in the GM full-size truck range during this era, installed in 3500-series heavy duty pickups, G30 vans, and P30 commercial chassis for maximum towing and hauling capability. These vehicles accumulate substantial mileage in commercial and agricultural service, making the 7.4L distributor a high-demand service item.

The GM 7.4L (454 CID) V8 uses a specific electronic distributor configuration suited to its high-displacement combustion characteristics. Compatible with the factory TBI fuel injection system installed on these engines. The EP-1878 ships complete with cap and rotor.

The 7.4L big block distributor is physically larger than the small block and V6 units in this series, with a different shaft configuration appropriate for the big block's higher displacement and combustion pressure requirements.

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 bevel gears 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