For a specific accounting of what was in your particular truck, go here:
https://www.gmheritagecenter.com/do...hevrolet-Trucks/1959-Chevrolet-Truck.pdfYou can also find torque and horsepower curves for your particular engine. Those are very interesting as they reveal the effect of changes between years. If you look far enough, you can also find GM published data about why they were making the changes.
Where the year shows (1959 above), type in the year of your truck and then hit the "enter" key. You'll see what GM published in the year your truck was built. There is also tons more information on the GM Heritage site. If you want a sales brochure (most are in color) for your truck...they're there. Example:
https://www.gmheritagecenter.com/do...hevrolet-trucks/1952-Chevrolet-Truck.pdfGood luck.