440 source engine packages

That’s all the parts. They arent doing the machine work and assembly.
Yup. From their website:
"You supply a machined engine block, (we'll match the stroker kit to the finished bore size of your block) and this kit includes everything else you need to assemble a 100% BRAND NEW, 100% complete engine, air cleaner to oil pan, water pump to flexplate. We even include the carb, fuel pump, starter and related hardware, and the cam assembly and break in lubes. And even engine paint, so you can totally complete the build."

So you buy their kit to complete your block.