diff --git a/500And650.md b/500And650.md
index 7f2fe9a..a8fbfb5 100644
--- a/500And650.md
+++ b/500And650.md
@@ -8,6 +8,7 @@
 
   * [This motor](https://www.aliexpress.com/item/4000250072388.html?spm=a2g0o.order_list.0.0.21ef1802ozHCez) has been verified to handle 250 phase amps and about 100 battery amps though it gets hot fast.  
   * If you push it hard you'll need some heat sinks like [this]([http://someoneFindALinkPlzkthx](https://www.pwmall.com/p-210643-50_126-delavan_heat_sink_fits_all_4_diameter_delavan_motors_7870_7970_7871_7971_fb_series?fbclid=IwAR1qtVtE8GrEi5lMz8ljRAmksvRH3bCqQk6Q1Tn-cePhvMYAo2bQ8pyqhgA)): ![this](images/heatsink.jpeg)
+  * Feel free to [put your old motor in your kid's 350](./350s.md#motor-upgrade)
 
 ## Controllers