starter issue ?

[M1L3S]

So I did a motor swap.

Car wouldn't start after vigorous cranking (first issue)

Then I realized that with dead time I can not run the 1600cc (no start problem 1)

Put in 880cc tuned the gm maft translator to accept them.

Went to crank her over, got two cranks before nothing but clicking .....

Trip to auto store proved my spare starter was good

My original starter (in car) blew the testing units fuse and breaker (yikes)

So Im guessing that was the issue

Put the spare starter in got one good crank , then sound of spinning starter

Went to crank again. Got nothing . No click no crank ....

I'm hoping I didn't seize engine from excesses cranking , or did damage to electrical system..

I have no idea what it can be. I checked fuses and grounds .... I'm at a loss..