It may be tough who knows BUT everyone does not want a Drag motor (Cub) also. Got to keep in mind these cylinders will have a very broad powerband and come with pistons, all gaskets, fresh bore/hone, powdercoated black (not bare), etc. with no wait time on porting. By the time you get a cub and add pistons, gaskets, stud extenders, waterplugs, gaskets, powdercoating, etc. you are already way more than $1000. We also have a customer with this same porting who runs his buddies 350 cub and the Dune/Play port is right there or just in front. Several people on here will vouch how these cylinders run ....Duner440, Badassbanshee479, Rippen, Bigred350x (as his 4mm cub was getting beat by similar cylinders, i know, i know Red, yours wasnt tuned. jk lol).