Hemi cranks

Jake · Post by **Jake** » Fri Jan 06, 2006 9:59 pm

Is there any crank manufacturers out there that are making a billet or non twist forging for the 331? If not, are there any other type of cranks that will work in a 331 as in a 440 or something like that?

Thanks

firepower354 · Post by **firepower354** » Fri Jan 06, 2006 11:30 pm

Try scatcrankshafts.com for a custom.

Jake · Post by **Jake** » Sat Jan 07, 2006 3:00 am

Thank you

firepower354 · Post by **firepower354** » Sat Jan 07, 2006 10:15 am

Also I've had great work done by RO-DY in Plymouth Michigan if you aren't in a huge rush. Greg does all sorts of customs too.

Bailiesdad · Post by **Bailiesdad** » Sun Jan 08, 2006 9:29 pm

Jake wrote:Is there any crank manufacturers out there that are making a billet or non twist forging for the 331? If not, are there any other type of cranks that will work in a 331 as in a 440 or something like that?

Thanks

No, none making 331-354 cranks

Jake · Post by **Jake** » Tue Jan 10, 2006 5:34 pm

Talked to Scat today and they said they can do billet 392 cranks for $3100 and that they have done a 354 billet in the past and that it would be about the same money.

So I guess my next question is what does it take to put a 392 crank in a 331?

firepower354 · Post by **firepower354** » Tue Jan 10, 2006 7:35 pm

Rody Machining
(734) 459-9335
860 N Holbrook St
Plymouth, MI 48170

Greg's a fair amount cheaper, but still in the 2k range. There's a huge quality jump from a 392 crank to a new billet.

392 cranks weren't made of especially good steel. If you aren't going for records you can turn a 392 to fit the 331/354 and add some stroke by reducing rod journals to BBC.

Jake · Post by **Jake** » Tue Jan 10, 2006 9:22 pm

Ok thanks, I'll give him a call tomorrow

johnny5 · Post by **johnny5** » Wed Jan 11, 2006 5:57 pm

These guys are good, and way cheaper than most.

http://crankshaftspecialist.net/

Jake · Post by **Jake** » Wed Jan 11, 2006 6:07 pm

Crank Specialists did some hardchrome on my billet K.B. crank that had a nick on a pin. I didnt know they made billets also...Thanks for the help Johnny.

Moparlee · Post by **Moparlee** » Thu Jan 12, 2006 12:23 pm

[quote="firepower354"]392 cranks weren't made of especially good steel. quote]

This is the first that I've heard of that. I was always told that the 392 had the toughest crankshaft from the factory, even the 426. Is this not true?

Lee

Jake · Post by **Jake** » Thu Jan 12, 2006 2:11 pm

I think they had good cranks as far as production cranks go but, there are better materials available and better processes with which to make cranks. On a side note, I personally believe that a certain part of the original crankshaft's success was that it also had a stiff block with which to live in. I don't have a shread of evidence to back that up other then visual inspection of the main webs but I dont think for a minute that hemi main webs "noodle" and move around like a chev or something else with the thin wall castings.

gregshemi · Post by **gregshemi** » Mon Aug 28, 2006 8:42 pm

Ive been drag racing 354's for years. I run blown gas and have never run anything but stock cranks and have never twisted or broken one. I run the blower at 20% overdrive and shift at 7200 RPM. Ive burned pistons broken rockers and lifters but never damaged a stock crank. So consider what you have to spend for an aftermarket crank and what its really getting you.

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