no, you've got it backwards
You are describing a 4s2p configuration
when combining panels in series the voltage adds up while the amps remain the same
Parallel strings will add up the amps while the voltage remains the same
with a VOC of 40.5 volts a string of 4 panels will have a voltage of 162v resulting in a deep fried SCC
dropping to 3 panels in series leaves you one panel short for a balanced 3s3p configuration
with 8 panels you're looking at a 2s4p configuration
2s4p results in 81v and 43.6a