Good luck with that disconnect switch- - - -it only has about one fourth the current capacity necessary for carrying full starter cranking current. It will burn out quickly, or at least result in low cranking speed and poor starting. You need a 500 amp minimum capacity, and one with a 1K amp surge capacity is better.

https://www.oreillyauto.com/detail/...aster-disconnect-switch/ch00/2484?pos=11

Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!