1956 , 324 Olds motor, this was a dealer replacement engine. Rebuilt by the Olds dealership and sold as a “replacement engine” about 1966. Except this one was never sold and stored for 40-50 years. 1956 block bored .040, all machine work done. New stock pistons, new USA bearings, new oil pump, new timing gears, new cam. Completely reworked heads, #10’s. Not knowing what I bought, I took the engine down to check it over, the engine was dirty from setting so long (with no valve covers or valley cover) I flushed it out , motor turned free. Here’s few photos, for more photos or information contact me at [email protected] [email protected]