440 cid, combo suggestions?

71 Duster 440 said

Lots of good opinions in here guys, keep em coming!

This may be a stupid question, but I did a search first in a few sections and came up with nothing. How much horsepower can these 440 blocks take on a stock rotating asssembly? How much can they handle on a forged rotating assembly?

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With the stock forged crank and rods you're safe at mid 500-600HP that being said you're pushing it with stock rods at 600 in my opinion. The block itself is good for 800HP, I'm guessing but will need a crank bearing girdle amoung other things. As I said earlier the compression ratio for a 72 factory stock 440 was 8.75 to 1 and there is no way of knowing what yours is without pulling her down unless of course you've had the engine since it's birth and knowbody else has been playing with it.

Terry