After buying a former Z/28 Super Stock drag racer just a year ago, the restoration of the body & paint is nearing completion. I tore the car down last year, removed the 10 point cage and since then the floors have been completely replaced, the stretched wheels wells have been closed in with new...

What would this block be worth to the owner of the original car? To any other Z28 enthusiast? Casting date A 28 9 Thanks.