I haven't seen mention of
-sheet of gasket paper
-Permatex #2 for the gastets and pipe threads
-spare fan belt
-feeler gauges if you'll be on a real long trip and need to adjust valves
-Gasket scraper, I made one out of an old broken flat file now about 4" long, ground flat on one side with a bevel on the end for the scraper, and on the top side it is still a file, so can remove nicks and used for the final cleanup of the surface before putting back together.

At one point on a multi-thousand mile road trip I broke a fan blade on the 52, the solution was to cut off the opposite one (for balance) and reinstall the now 2 bladed fan. Sure was glad I packed the hacksaw on that trip!!

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-