What is a GM restoration kit?
I have the same question Zak has--what GM restoration kit are you talking about? (And I also agree that the Team Chevelle Forum is invaluable.) Thanks!
The "kit" is basically photocopied paperwork, specs, some data brochures, etc. for a given model year. Not all years included the same information. They generally show tables of paint colors vs. interior color, vinyl/convertible top colors and stripe colors associated with paint colors. Specs on driveline, wheels, tires, rear axle, engine components (not codes, just specs), options and what model they can be ordered on, driveline combinations (what rear end gear came standard with what engine/trans combo) standard interior/exterior appointments for the various series (300/300 Deluxe/Malibu/SS396/etc.), sometimes weights, dimensions, this kind of stuff. Sometimes they'd include El Camino and wagon stuff but not always.
They weren't always as complete as one would like and were a snapshot in time, usually early in the model year so things like 67 L78s aren't mentioned.
It used to be you could call the customer assistance hotline (800-222-1020), give them a valid VIN and they'd send you the "kit" for free and didn't even charge for mailing. Here's where El Camino and/or wagon stuff might not be included if you give a Malibu VIN - sometimes El Camino "kits" were different in their own right and you'd have to give them an El Camino VIN to get that data. I have various "kits" for 66-72 Chevelles and even one for a 74 Corvette I owned some time back.