Big Block Weight Differences

I don't want to Hijack the thread, but this reminds me of the discussions I have seen here before about BB A Bodies vs SB A Bodies. I had always thought that a 440 in an A body would be nose heavy and hard to drive. Someone here (I think it was @RustyRatRod) set me straight on that. He said that a 440 with aluminum heads, aluminum intake, aluminum water pump and headers weighed about the same as a stock 340 with factory exhaust manifolds. And those cars were certainly not nose heavy.
Exactly, the big block with aluminum heads and intake is actually lighter then an iron headed aluminum intake sb by 7 pounds