[Dave at Pelican Parts]

Actually, the 911 crank is relatively heavy. It's pretty thoroughly overdesigned for what it does--I believe it has more main bearings than the SBC crank does! Remember, the SBC runs two rods per rod journal on the crank. It has only five main bearings, while the 911 crank has seven! The 911 crank, partly as a result of that, is about as long as the SBC crank.

Just because it has fewer cylinders doesn't mean the crank is lighter.

--DD