Fusible links tested
 

I've always wondered what the current ratings for those stupid fusible links are. I've seen posts regarding this go unanswered, so here is what I've found. I tested a red one and a black one. The red ones will go up in smoke at 30A. I got a black one to carry 60A and it was getting toasty, but didn't open up. I didn't test a green one.
Since I will be replacing all the links under my hood with a main fuse block from an '87 Mazda (5 circuits - an 80A, 3 30A and a 40A), I will replace the black link with an 80A fuse, the red ones with 30A fuses, and the green with a 40 fuse.
Hope this helps! :)

'78ZXT