I have a new attwood 4way battery selector switch 25.00$ and a set of small block chevy center bolt gm crome valve covers they are ribbed and have the chevy bowtie logo in red in the center of both comes with the bolts 75.00$ shipping is additional.

Will that 4 way switch still work OK for a 3 battary application. I can't see why not but not certain. If so I will take it.
John