By the way on your 409 how far along are you? Reason I ask is there are now six million dollar parts available for the 409. Specifically a new high nickel alloy casting from World Castings for a new high strength four bolt block (the original was only offered as a two bolt) and new high flow aluminum heads from Edelbrock. Diamond, JE, and Mahle all make forged pistons and you can buy a chromemoly crank for a big block Mark II and turn it down to fit the 409 (preferable than having the Chinese do it). Along with the same 4340 alloy chromemoly being used to make new rods with ARP bolts to hold it together.
Altogether it makes it better, stronger, faster than before: