Manley Forged crank question

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Dec 25, 2011, 09:52 AM

#16

sktng22

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Quote:

Originally Posted by cursedsm

Yeah only thing I can say to that is if you do go that route don't over pay for a crank and if possible buy a couple. I mean yeah it is kind of a waste of money but like you said if your unsure and if you have a couple of them if one is good then your good to go, if the other is bad scrap yard or sell to a company who buys used cranks to have them turn it. But I can understand not wanting to spend more then you need to.

yeah i mean the only thing that has me stopped from doing that is that ive seen pics of 4g64 cranks broken and never a manley. i just really want to know why these shops are all using 4g64 cranks and telling me that manley would be the second best thing. i dont understand it

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Dec 25, 2011, 09:53 AM

#17

sktng22

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I just dont want to be the guy to find out why manleys are the second best being that i have some expensive parts going into this build

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Dec 25, 2011, 10:00 AM

#18

CurseDSM

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Well like I said earlier the oem ones break being they prob weren't maintained correctly and have alot of that crap out of them and instead of spin the wobble. I mean OEM cranks are strong as well and alot of them see plenty of hp. I can understand the consern but I would think if the machine shop knew what they were doing and cleaned it out properly it would be fine.

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Dec 25, 2011, 10:04 AM

#19

sktng22

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does anyone know what steel the oem 4g64 crank is made of?

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Dec 25, 2011, 10:54 AM

#20

n2oiroc

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i just did a pile of searching and the only bad thing i could find about the eagle crank is one shop didnt like the oiling on them. david buschur also had a problem years ago with an eagle crank eating a thrust bearing.

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Dec 25, 2011, 10:55 AM

#21

n2oiroc

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Quote:

Originally Posted by sktng22

does anyone know what steel the oem 4g64 crank is made of?

if i had to take a wild guess, i would say something like 5140.

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Dec 25, 2011, 11:06 AM

#22

n2oiroc

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uggghh. now im paranoid about the 94mm eagle crank in my 2.2L ready to go into my evo. i just ordered a 94mm manley turbo tuff billet crank to swap in.

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Dec 25, 2011, 11:10 AM

#23

sktng22

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haha nice i really think ill endup going that route

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Dec 25, 2011, 11:20 AM

#24

Piro Fyre

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I can say I bought an OEM 4G64 used from a fellow Evom member and recently got it rotated. Machine shop said it was perfect like a lot of cranks from factory so no cutting was done. Honestly these cranks see oil all the time so I don't see how an OEM crank would not become unbalanced.