451/452 Stroker Builds?

Weighs less and fits A-body's easier.
400 base-3.75 stroke crank and it's .060 stock this will give you 451 ci.
440 Source stuff stuff is good to about 750 hp and thats about what the block will take.
What they are saying about heads is right on the money.
You have to get the air in and out to make power.