This is a complete factory-issued documentation set for the 1990 C4 Corvette, covering all models for that model year, including the LT5-equipped ZR-1. This collection represents original manufacturer reference materials used by dealership service departments and technicians, providing detailed and authoritative information not typically found in aftermarket manuals.

The set includes the engine mechanical publication, which applies to 1990–1992 models and covers both early two-bolt configurations and related service procedures. Also included is the full 1990 workshop service repair manual, encompassing all Corvette models for that year, with detailed diagnostics, repair procedures, and system breakdowns for both L98 and LT5 engines.

A central control module (CCM) diagnostic manual is included as well, consisting of approximately 50 pages of factory diagnostic procedures for 1990–1994 Corvettes. This publication provides step-by-step troubleshooting guidance for electronic systems and onboard diagnostics.

In addition, the set contains the parts and illustrations catalog covering model years 1984 through 1993, offering exploded diagrams, part numbers, and component identification essential for accurate restoration and repair work. A comprehensive wiring schematic supplemental manual is also included, providing in-depth electrical diagrams and circuit information.

Altogether, this factory documentation set totals well over 5,000 pages of highly detailed technical information. It is an invaluable resource for restorers, collectors, and technicians seeking accurate, period-correct data for the C4 Corvette platform.

Included Publications:

• LT5 Engine Mechanical Manual — Publication No. 56014.12–B2
• Section 8A Electrical Diagnosis Manual — Publication No. ST–364–90EDM
• 1990 Corvette Service Manual (All Models) — Publication No. ST–364–90
• Central Control Module (CCM) Diagnostics Manual — Publication No. 19010.05–2
• Spare Parts & Illustrations Catalog (1984–1993) — Publication No. SPC–84–90

Format & Delivery:

This documentation set is provided in digital format and download links will populate after payment is processed.