Engine builder Northeast

I believe it’s a 340 resto block with 4 bolt mains. I have attached a picture

4B729C99-629E-4E7B-AF74-5E79C3967B04.jpeg

78298561-30C0-45B0-A5E0-8013F9C0CD84.jpeg

6A5D8970-ED91-4AB3-849F-3C9EDD6C5176.jpeg