K frame lowering blocks

I really can't understand most of your post so I can't comment on it...but I will say two things:

1) The spacers are not there for speed or racing. They're there for space. 1/2" is a ton of space when it comes to being able to close the hood or not.

2) Things have changed, yes. We can now admit to our tingly feelings for other men, we can protest by stealing Nikes from Target, and we can fight the man like never before. But math? Math hasn't changed a single bit. If you need to fit a 24" tall engine in a 23.5" tall compartment.....you'd better get out the old school spacers. Cast iron compresses poorly.