hehe, "che".
I don't know what you call long block or short block... Here in Argentina exists the 188" and 221", and some USA ECONOLINE 6 inline, about 300"... I think you call big or long block to ECONOLINE 6... I'm not sure.
However, it's a 221" SP engine. I think it's a short block for you.
Thank you, che! hehe.