Block was taken from a brand new mercruiser 454 magnum and was machined on cnc rottler equipment with invoice from Rudd Racing Engines in ardmore oklahoma.. Was bored .030 , honed, and had it cnc stroke clearanced for 4.25 stroke. Have invoice for all machine work done in september this year along with deck height specs etc.... I was gonna build this block as a 496 for customers boat but he was running short for money... Block has original mercruiser tag still on it and this block has never had oil in it till i ran it on an engine stand.. Have video of it running and oil pressure etc. Block has new durabond cam bearings installed and is ready to build. Located in shreveport, louisiana 318-470-1482 Asking $1795

text me for videos and invoice... Machine work invoice was $1008