Yes. It's an 044 casting. The block I bought from you pulled a head stud due to the deck having really deep cracks into the bolt holes. I still have the block and put Time Sert thread inserts in it but It needs to be bored to 4" ( used hardened ductile iron rings, wore it out ) and I would have to buy new custom pistons, so I had another block I had machined for a girdle and used the old rotating assembly and it is running great. This new block is a backup.