I recently found a 427 tall deck motor. Its a .030 bore with standard bearings on both mains and rod journals. I found two ways of building this motor, stroker kit for a 496, or a 427 car motor. I also have two pair of BBC heads, Rectangular port (3994026) open chamber with 2.19 int. 1.88 exh. and Oval port (3872702) closed chamber 2.06 int. 1.72 exh., but both are bare. Looking for the most economical builds for both, the 454 block is .030 over and if I purchase the stroker kit for the 496, I can use the internals from the 427 TD, and install 427 crank into the 454. Which would give me a 427 car block and a 496 stroker engine. I am looking for some ideas on these motors, any more info?