Packard Forum Index » Post-War (1946-54)

If you use aluminum heads on a cast motor you have to use special anticorrosion additives in the cooling system and gaskets. This is very common in today's motors but sure was not well understood, if at all, in the day.
It took alot of engineering work in sealing, bolting, and corrosion to introduce aluminum motors/radiators.
So on a 800+ lb motor does saving ~50 lbs(guess) on the head weight without increasing HP, really warrant its use?
Paint it silver!
Maybe just one more thing leading to the P 50's demise...You can't have alot of screw ups and survive.

You can't have alot of screw ups and survive.

True enough. But we also have to remember they weren't engineering cars to last three quarters of a century, or more - that would have been financial suicide. Average lifespan of a car back then was probably 12-14 years.