i have a 1970 xf 455 high output with 64 heads. the previous owner says it only had between 4 and 5 thousand miles on it. it's clean enough for me to believe that's true. there are three cylinder walls that look kind of rough. my machinist says 40 over may or may not clean them up. the crank is 20 under the cylinders are 30 over as it sits. it needs new bearings, rings, pistons and cam/ lifters......it needs to be built. asking 1250 plus shipping i will deliver within a reasonable distance (2 hours one way at no charge, beyond that 50 dollars for every 100 miles) you must unload.