No.
There are some difference in peripherals between 32\64 and 128\256 KB flash.
If you want to use the files generated by a project based on MKL17Z64V which has available the Peripheral Tool, compare difference between KL17P64M48SF6RM and KL17P64M48SF2RM is needed.

You can roughly compared the two header files to see the difference.
...\SDK_2.5.0_MKL17Z128xxx4\devices\MKL17Z4\MKL17Z4.h
...\SDK_2.5.0_MKL17Z64xxx4\devices\MKL17Z644\MKL17Z644.h
In order to define the peripherals initialization, please refer the driver_examples in SDK_2.5.0_MKL17Z128xxx4.(...\SDK_2.5.0_MKL17Z128xxx4\boards\frdmkl43z\driver_examples)
You may also read the MCUXpresso SDK API Reference Manual_MKL43Z4.pdf in SDK_2.5.0_MKL17Z128xxx4_doc.

Best Regards,
Robin
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