rear counterweight solution s5 na in gsl-se
 

I posted a couple of weeks ago about a clutch install that turned into a nightmare. Discovering that the eccentric shaft had a hand grinder taken to the pilot bearing area. To make a long story short the motor could not be fixed without being taken apart and having a new eccentric shaft put in. I now have a freshly rebuilt s5 motor, after some research I figured out that I can essentially just transfer everything over from the gsl-se. Now my question is that the rear counter weight is off a s5 automatic. I have a spare gsl-se flywheel clutch and counter weight. I also have a 86-88 fc 13b n/a counter weight is there a way to make this work or do I need to purchase something else. I am not wanting to pay for an aluminum flywheel if there is a more cost effective solution.

the simple way is to find an S5 NA flywheel, or an aftermarket aluminum one.

the GSL-SE, S4 and S5 are all balanced differently, and they all use the flywheel/counter weight to do it, so you cannot mix them