Crate Stroker motor
You have iron head and aluminum head, then iron and aluminum with carb, or iron and aluminum head with EFI. The base 360 core, with magnum heads, is 3600. The hp does go up with options, but I'm guessing with how they are shown (or not shown) that they have a dnoy sheet for one build. Not for yours in particular. Like the MP 360 380hp..they know the first one made that, they dont test every single one. They use some decent parts, and the price climbs a bit with each additional thing..the EFI aluminum head one is $9K. It gets more believeable with the better parts, but they arent dyno testing every one, at least I doubt it. I would bet the EFI one is fired and run tho...