need help finding out what model these engines are.

[left4dawn]

i bought 3 engines one is 5hp, i think the others are 3hp got them cheap they seem to run but i need some help figuring out what model they are.One can run but is missing a fuel line and another might be clogged and havent tried the third one. they are all briggs and stratton engines one is red and on the pull start cover i found the numbers 80332 0474-02 73091703 on the white and also the rusted engine i did not find any numbers. i have included pics not sure if that will help or not