Any experience with the AA forged crankshafts? |
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Any experience with the AA forged crankshafts? |
stugray |
Apr 22 2018, 10:47 AM
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#1
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
I am looking for a good 2.0L stock crank (71mm).
It is for my race engine, so I would rather have forged than billet (like the SCAT product). Who has used a AA forged crank? Any issues? Do we know if these are brand new or reconditioned to be "new"? Anything to worry about or better options? https://aapistons.com/products/counterweigh...qxoCrTYQAvD_BwE |
zig-n-zag |
Apr 25 2018, 01:21 AM
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#2
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Member Group: Members Posts: 182 Joined: 18-May 06 From: Hawaii Member No.: 6,024 |
A 66mm crank can be made into a 71mm crank by offset grinding the rod journals.
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stugray |
Apr 25 2018, 01:44 PM
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#3
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
A 66mm crank can be made into a 71mm crank by offset grinding the rod journals. I was wondering if I could have a 1.8L crank ground down to a 2.0L crank. If the people doing the work can add a little weld to the outside of the journals you should be able to. I have TWO 1.8L cranks (paperweights) on my shelf. |
Mueller |
Apr 25 2018, 03:39 PM
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#4
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
A 66mm crank can be made into a 71mm crank by offset grinding the rod journals. I was wondering if I could have a 1.8L crank ground down to a 2.0L crank. If the people doing the work can add a little weld to the outside of the journals you should be able to. I have TWO 1.8L cranks (paperweights) on my shelf. No need to add material. The new journal has a smaller diameter and will have an axis further away from the crank centerline for the longer stroke. |
gothspeed |
Apr 26 2018, 11:56 AM
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#5
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Senior Member Group: Members Posts: 1,539 Joined: 3-February 09 From: SoCal Member No.: 10,019 Region Association: None |
A 66mm crank can be made into a 71mm crank by offset grinding the rod journals. I was wondering if I could have a 1.8L crank ground down to a 2.0L crank. If the people doing the work can add a little weld to the outside of the journals you should be able to. I have TWO 1.8L cranks (paperweights) on my shelf. No need to add material. The new journal has a smaller diameter and will have an axis further away from the crank centerline for the longer stroke. (IMG:style_emoticons/default/agree.gif) Need to confirm but I believe that is what the factory did to achieve the 71 mm 2.0 stroke. Used the same forging then shaved additional material off the inside of the rod journals. This made the 2.0 crank journals a tad smaller diameter. |
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