Is it worth putting power steering into a early z??

Some old threads on the subject that might interest you:

http://www.classiczcars.com/forums/showthread.php?29730-converting-to-power-steering&highlight=power+steering

http://www.classiczcars.com/forums/showthread.php?34706-Electric-Power-steering-kit-for-Z-car&highlight=power+steering

http://www.classiczcars.com/forums/showthread.php?38717-Electric-Power-Steering-for-S30&highlight=power+steering

http://www.classiczcars.com/forums/showthread.php?31014-power-steering&highlight=power+steering

http://www.classiczcars.com/forums/showthread.php?28761-power-steering-on-240z..&highlight=power+steering

http://www.classiczcars.com/forums/showthread.php?27252-power-steering-in-s30-from-s130&highlight=power+steering

http://www.classiczcars.com/forums/showthread.php?24191-280zx-power-steering-in-a-280z&highlight=power+steering

http://www.classiczcars.com/forums/showthread.php?23440-Power-steering-for-early-z-series&highlight=power+steering

In the era when the 240Z was designed, power steering was an option that relatively few people purchased. Only high end luxury cars came with power steering as standard equipment. It may be coincidental, but PS started becoming standard equipment when front wheel drive cars became the dominate style. If you have ever driven a front wheel drive without power steering you quickly appreciate why PS became standard.

I realize that I didn't answer your question. Search the old threads, and draw your own conclusions.

Have you looked at this thred about bolt-on swap electric power steering kit? It is the most efficient item I have ever put on my car.

http://www.classiczcars.com/forums/showthread.php?34706-Electric-Power-steering-kit-for-Z-car&highlight=electric+power+steering

thanks