S-300 62,64,or66? and K-31

Whats a 480? How does that compare to say a s400 or B2. Also is the k31 much bigger then an HT3B, I thought it was used as a big single?
 
The 480 is a big s400 with a 80 mm inducer instead of the 75 inducer on the b-2. The k31 is run as a big single, but for twins its a bit small for big power
 
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