LS1/6 (24x/1x) Engine Main Harness - 558-102 downpipes Compatible with Factory Mufflers or

Compatible with Factory Mufflers or Flowmaster Axle-back Systems

HI-RAM 95MM Plenum Top for EFI Hi-Ram Manifolds- Bolt down through design

3-Row Radiators supporting applications with 600+ horsepower

8L L6 1979 - 1980 GMC K2500 Suburban   292/4

Note 1- big block frame stands and motor mounts must be used to ensure proper engine location and header fit

LS1/6 (24x/1x) Engine Main Harness - 558-102 downpipes Compatible with Factory Mufflers orOverview: This harness is designed for LS1 6 Engines, from 1997 2004. This harness interfaces with 24x Crank and 1x Cam sensors. Features: Application: Year Make Model Submodel Engine Size Universal Specs: Brand Holley EFI Crank Reluctor 24x Emission Code 4 Harness Application LSX Harness Type Main Product Type LS Main Engine Harness