Cool find! I have a complete 265, dated nov. 54 so its an early one that I have on display as Chevy's first V-8. Speaking of crate engines I also purchased a 302 DZ engine in the crate in 1970 and it is squirreled away for future use unless one of the 69 Z-28 eccentrics just have to have it, 8,500 would tempt me to get it out of hybernation.. The 265's with 3x2's make nice little mills for hot rods. Good luck with yours.