I have been checking out the info available at the GM Heritage link. The vehicle information kits seem to be the same info that was once sent out as a resto kit however the pdfs are much easier to read than the smeared copy I received by mail back then.
While snooping around the site I got a chuckle out of these titles in the brochures:
Chevrolet Trucks Advanced Design Built for the Load... Powered for the Pull (1954)
The Cold Facts About Chevrolet and Ford Truck Engines (1954)
Comparison of Chevrolet V6 engine performance and Ford V8 and V6 engine performance
Looks like the people who put the site together don't know much about Chevy trucks.