1978 C3 Assembly Instruction Manual - Original Build Documentation 464887 - OEM Number(s) (464887)
Original Factory Build Instructions For Your 1978 Corvette
Our 1978 Corvette Assembly Instruction Manual is a direct reproduction of the original documents used inside the St. Louis Assembly Plant on Union Boulevard. Every page is sourced from Chevrolet’s internal build documentation—providing factory-original diagrams, part layouts, torque specs, and fastener guides used during actual 1978 production. This is the authentic factory reference once relied upon by UAW craftsmen and GMAD assembly technicians who built every 1978 Corvette with precision and pride.
Why This Manual Matters
These manuals weren’t created for public release—they were Assembly Line Manuals, used exclusively inside GM’s factories to guide production teams step-by-step. From 1953 through mid-1981, the master copies were updated constantly on the factory floor in St. Louis. What you’re getting is the best available reproduction of the 1978 build blueprint, guiding restorers through every assembly detail from frame to fasteners.
Features of the 1978 Assembly Manual
• Factory-issue diagrams and part installation sequences
• Mandatory fastener types, torque specifications, and sealant details
• Complete 1978 base vehicle systems plus option-specific instructions
• UPC groupings and RPO codes for simplified reference
• Engineering Change documentation reflecting mid-year updates
Because Details Matter
Using Chevrolet’s own documentation ensures your 1978 Corvette is rebuilt with factory-level accuracy. At Mid America Motorworks, we’re proud to help you replicate the work once performed inside the St. Louis Assembly Plant—by UAW craftsmen and GMAD assembly technicians who built every Corvette panel by panel, bolt by bolt.
For a deeper look at how Assembly Manuals were used in GM’s factories, explore:
Understanding Your Corvette Assembly Manual
1973-1982 Corvette Build Sheets
Also known under these part numbers: (For reference only)
- 78-COFA
- 1978 AIM
- 464887
- 60000178
- 78 AIM