The 462 actually had a very small chamber in the cylinder head, so you are going to have to allow for that retrofitting 462 components into an earlier 430. With iron heads you don't want much over 9 to CR for pump gas.
You are actually going to be experimenting with CR as this swap was most likely common many years ago, but where would you find those guys now? You are probabaly going to have to assemble the engine a few times to arrive at the CR (cc the cylinders) and check for valve clearance with a reground camshaft. Be advised that the 59/60 TBIRD 430 was actually the 1959 LINC 430 directly off the assembly line. An actual performance camshaft would be derived from the early MERC.
I was going to do a study of reground cams and how far a grinder can go with the cam still being reliable. I have sat on my fat butt too long. I need to contact a few grinders to see how they would go about it. I know CRANE has some type of new grinding machine that is supposed to be the cat's meow as to exactness. I would imagine that they can transfer one of their later patterns to the grind as technology has changed so much over the years.
It is very important that you keep the board abreast of the progress of your rebuild so others can benefit from what you learn. Is there a machine shop there that you can tust or are you going to send it out?
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