Detroit diesel injectors size and application

[scorpion6]

I have at my disposal 6 rebuilt S 90 Detroit injectors I need 3 N 45-50 injectors for my 3 53 Detroit . Any one ? I know the 353 likes the N series in 40-50 range, but what does an S series , 90 even, fit? I just know I would not want to put one in my Detroit! Any help or a trade would be appreciated!