Early A v8 center link

I Came across a 71 360 and am told its out of a police car and is a forged crank motor and internally balanced, I thought all 360 were external balanced, have you heard of this combo? Thanks

Nope. Never happened. Either it's a standard 360 or if it's internally, balanced it's a 318. Or.......least likely, a 340 transplant. No 360 ever came with a steel crank.