Are our cranks iron or forge steeL

[OUTFXD]

Title says it all. Just curious!

[Los_Control]

More importantly, is the owners cranky old men? 

[Plymouthy Adams]

  On 4/2/2025 at 9:55 PM, Los_Control said:

More importantly, is the owners cranky old men? 

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no but likely forged from fire ourselves.....

[soth122003]

My best guess is forged steel. Two reasons for this assumption. (I know ASS U and Me) 

1. If it was made from Iron, if your car sat in a field or barn for decades the crank would likely be more rusted than it is due to the nature of iron and an open vent system in the crankcase allows moisture/condensation to build up on the crank. Just my thought.

2. The amount of torque a crank goes thru in its life. The iron is a softer metal and would likely break/bend easier than steel, resulting in more crank replacements due to stress than is actually done.

 

Without knowing for sure these are my two thoughts on the material make up of the crank. Don't know if I am right, just my guess.

 

Joe Lee 

[Sniper]

Simple enough to answer.  If you have a crank handy, look at the parting lines.  Cast cranks have a sharper parting line than a forged crank.  Hang the crank from a rope and hit it, lightly lol, with a hammer.  If it rings clear like a bell it's a forged crank.  If it doesn't then it is either a cast crank or a bad forged crank.  Neither is iron though.

 

https://www.hotrod.com/how-to/how-to-tell-forged-crank-from-cast-spotters-guide/

[QEC]

Forged.

[OUTFXD]

  On 4/3/2025 at 10:29 PM, soth122003 said:

Two reasons for this assumption. (I know ASS U and Me) 

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When you make an assumption, you make an ass out of you... and Umption!

[Dodgeb4ya]

218 ci...Dropped forged,high carbon steel...7 counter weights 71-1/2 lbs.

Rods are forged too...

230 ci. Same but crank 75-1/2 lbs.

Edited April 8 by Dodgeb4ya