No, when you recone a woofer all you can change is the size of the woofer. IE you can recone a SA 12 into a SA 15 or vice versa. The sa-8 v1 can be upgraded to a sa-8v1.5 but not the sa-8v2 since its a completely different motor.
When you are doing a recone you are changing the "soft parts" such as the surround, cone, spiders, and coil. At this time you can change to a larger or smaller basket and bolt it to the motor if needed but make sure you order the recone for the new basket size. The motor always stays the same, theres no way to change a 2.5inch coil motor on the sa into a 3inch coil motor of the zv2 or zv3 unless your buying a new motor, which at that point you might as well buy a new sub since companies dont sell just the motors.
ok thank for clarifying!