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I'm Cranky!! How To ID Cast From Forged?
https://slantsix.org/forum/viewtopic.php?t=35191		 Page 1 of 1
Author:  Rug_Trucker [ Mon May 04, 2009 10:29 am ]
Post subject:  I'm Cranky!! How To ID Cast From Forged?
I picked up a crank from the machine shop. It was suppossed to be a forged unit. Now I am wondering!!! They also sent me home with "my" old one that needed to be welded and reground on one of the mains. They had a crank ready to go for 1/2 the price of welding and grinding mine.

The crank they loaded up as my old one was a V-8 crank of unknown make and model!!!

I am going to call them and tell them to locate my old crank and tell them I iwll be back tomorrow.

First and last time I think I will be dealing with these guys. I am going to mic this thing before it goes in.



:roll: frikken 25 miles one way ride :evil:

So how do we ID this thing? For my 74.
Author:  Joshie225 [ Mon May 04, 2009 12:43 pm ]
Post subject: 
Here's a post with an early forged crank next to a cast crank. http://www.slantsix.org/forum/viewtopic.php?p=186629 Cast cranks have narrower journals, both rod and main, and do not have wide parting lines like forged cranks.
Author:  Rug_Trucker [ Mon May 04, 2009 2:01 pm ]
Post subject: 
Thanks Joshie! Just printed that out. I am going to take it out to the shop for a comparison. Doc's has been heavily modified.

If a rod cap won't fit down onto the journal I guess that is a good indicator of a cast crank?
Author:  Rug_Trucker [ Mon May 04, 2009 7:22 pm ]
Post subject: 
:roll: geeeeeeeeeezzzzzzzz!!!!!!! Bad day in the shop. I accidently grabbed a 383 crank instead of the slant crank that was nearby. I've gotta call them in the morning and let them know I got my old crank and the new one :roll:
Author:  '74 Sport [ Mon May 04, 2009 9:51 pm ]
Post subject:  Rings like a bell
Stand them up on one end on the floor, then tap lightly with a hammer. Forged "rings" like a bell, Cast sounds duller. Yeah, I know... not very scientific.
Author:  Rug_Trucker [ Tue May 05, 2009 5:55 am ]
Post subject: 
I have the right type of crank. Just need to clean my shop.........now where is my valve spring compressor.....................?
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