Height-wise, I don’t know. I’m restoring these to sell and it is a test for my new cloth ones.
I’m doing most of work with a $40 steamer from Amazon and hog ring pliers.
Refreshed drivers seat on right, untouched passenger seat on left:
I can tell you that after restoration, the seat foam was not manufactured symmetrical side to side. The inner seat bolster is a bit slimmer and steeply flatter towards the transmission tunnel.
What I estimate happens is the outer bolsters compress and ‘stick’ in a compressed form over time. This allows the upholstery to sort of slip over the inside of the bolster and the seams misalign.
Opening the foam with steam returns the foam to new, allows you to realign the seams over the foam as it came from the factory. The renewed volume raised the bolster at least an inch an narrowed the seat width.