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That sucks...
Was it just a high spot out of round? You think he can just cut the high spot down, without cutting the other area of the same journal, or will he just turn the whole crank down some?

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I just told him to cut it .010... so now I need a
set of new bearings... no big deal I have a few engines
with stock mains so I can use the bearings... I just
want this thing to spin freely

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That sucks...
Was it just a high spot out of round? You think he can just cut the high spot down, without cutting the other area of the same journal, or will he just turn the whole crank down some?

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well he called me today
to say the front is bent between #1 and #3 mains

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Im quite sure you are having the whole assembly balanced...

I have an Eagle crank in my 499,,,everything was balanced and checked out except the flange...would you believe it was 150 thousandths to thick and caused the converter to eat the hardened pump drive...thought I had the clearance,..

good thing you caught it...

these cranks are Chinese forgings..aren't they suppose to be machined here?

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Yeah I already had it balanced... still no problem
with the balance... this work is being done to the
mains so that wont change

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Well that sucks Mike, but sounds like you already took care of it. Wonder if it got dropped sometime before you got it, the way the front is off slightly it almost sounds like it got hit on the end.

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I dont know... its never been dropped while I've owned
it and I got it new

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Im quite sure you are having the whole assembly balanced...

I have an Eagle crank in my 499,,,everything was balanced and checked out except the flange...would you believe it was 150 thousandths to thick and caused the converter to eat the hardened pump drive...thought I had the clearance,..

good thing you caught it...

these cranks are Chinese forgings..aren't they suppose to be machined here?

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Does this happen often w/ Scat cranks? I was going to order one today, until I read this.

Would I have better luck with a K1?

Kinda whizzes ya off, even if they are cheaper cranks.

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I cant say for fact... most of my SB stuff is 3.79
billet cranks... this is the first 4" forged stuff
that I have used

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Does this happen often w/ Scat cranks? I was going to order one today, until I read this.

Would I have better luck with a K1?

Kinda whizzes ya off, even if they are cheaper cranks.

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I'm of the opinion that scat cranks are pretty good pieces.
I've bought a cast 4 inch from them and also a forged 4 inch superlight which is a gorgeous piece for the money.

Both were well within spec. I agree with a previous gentleman's post regarding luck of the draw. To think there is ANY company that can keep tolerances we demand ALL THE TIME in mass produced stuff is impossible. Mistakes will be made and there will be inconsistency. You can't avoid it.

But in reality, this is NOT A PROBLEM within reason and is why we check things in the first place.

As far as brand goes...individuals often dont want to admit their high dollar piece came out of spec...I recommend asking a machinist since they look at a crank for what it is and not the logo etched on the weight, and it's their job to make it fit. They will likely give you a far more unbiased opinion.

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ALL Chinese cranks I use get drop shipped right to the crank grinder-then to my shop. I'd say that it's pretty common to have issues. 80% need some sort of rework. Part of the deal.

MB

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All Chinese cranks should get drop kicked back to china,.... Just my opinion

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ALL Chinese cranks I use get drop shipped right to the crank grinder-then to my shop. I'd say that it's pretty common to have issues. 80% need some sort of rework. Part of the deal.

MB

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All Chinese cranks should get drop kicked back to china,.... Just my opinion

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Yeah I got this crank a FEW years back... I didnt
know who made the cranks for MP... at one time Callies
made them for MP

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Mr.P did your crank grinder dial off the mains or did he go off the seal and the gear? Reason that I'm asking is that I sent 3 cranks back last year that had a 0.020" runout on the gear. (340 mains)

Randy

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I'm not sure how he did it... I'll call him to make
sure he checks the other stuff(I'm sure he will)

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Mr.P did your crank grinder dial off the mains or did he go off the seal and the gear? Reason that I'm asking is that I sent 3 cranks back last year that had a 0.020" runout on the gear. (340 mains)

Randy

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if the machine has chucks, you go off the seal area, not the mains. on certain cranks we change over to centers. can't get any more true to the centerline than that.
i know scat had some issues awhile back. i think it might have been Ryan J that said he wasn't going to use them anymore. i'm sure he'll correct me if i'm wrong.
we've literally used and sold pallets of K-1 cranks and rods and out of all those i've only ever had one with an issue that was actually pretty minor. no matter, they propmtly replaced it and ate the shipping both ways, as they should.
don't even want to get started on the problems with the eagle cranks throughout the years.
(DISCLAIMER)we sell all three of those brands, so there is no bias in my reply.

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Mr.P did your crank grinder dial off the mains or did he go off the seal and the gear? Reason that I'm asking is that I sent 3 cranks back last year that had a 0.020" runout on the gear. (340 mains)

Randy

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if the machine has chucks, you go off the seal area, not the mains. on certain cranks we change over to centers. can't get any more true to the centerline than that.
i know scat had some issues awhile back. i think it might have been Ryan J that said he wasn't going to use them anymore. i'm sure he'll correct me if i'm wrong.
we've literally used and sold pallets of K-1 cranks and rods and out of all those i've only ever had one with an issue that was actually pretty minor. no matter, they propmtly replaced it and ate the shipping both ways, as they should.
don't even want to get started on the problems with the eagle cranks throughout the years.
(DISCLAIMER)we sell all three of those brands, so there is no bias in my reply.

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I should have put it in my lathe to check it but I
would have ended up taking it the crank place

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ALL Chinese cranks I use get drop shipped right to the crank grinder-then to my shop. I'd say that it's pretty common to have issues. 80% need some sort of rework. Part of the deal.

MB

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All Chinese cranks should get drop kicked back to china,.... Just my opinion

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Yeah I got this crank a FEW years back... I didnt
know who made the cranks for MP... at one time Callies
made them for MP


I was told that the MP 4.15 for BB is Scat.
Is Scat chinese? Don

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All but the billet Scat cranks are From China, The machine work is from California last I remember,

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ALL Chinese cranks I use get drop shipped right to the crank grinder-then to my shop. I'd say that it's pretty common to have issues. 80% need some sort of rework. Part of the deal.

MB

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All Chinese cranks should get drop kicked back to china,.... Just my opinion

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ALL Chinese cranks I use get drop shipped right to the crank grinder-then to my shop. I'd say that it's pretty common to have issues. 80% need some sort of rework. Part of the deal.

MB

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All Chinese cranks should get drop kicked back to china,.... Just my opinion

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Yeah, then how many of the cheap assses are going to run $2,500. Callies or Crower cranks in their motors? Answer? just about nobody!

Its unfortunate, but that is how it goes.....

MB

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ALL Chinese cranks I use get drop shipped right to the crank grinder-then to my shop. I'd say that it's pretty common to have issues. 80% need some sort of rework. Part of the deal.

MB

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All Chinese cranks should get drop kicked back to china,.... Just my opinion

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Yeah, then how many of the cheap assses are going to run $2,500. Callies or Crower cranks in their motors? Answer? just about nobody!

Its unfortunate, but that is how it goes.....

MB

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HPMike, could you explain that statement, ive a callis in my 452 small block stroker, it works no better or no worse then the china crank in a stronger motor, and was a grand more...If my needs called for a billet crank id have one but at a certain power level many are happy with the china cranks that may need a lil work.

Other then getting the china steel cranks in spec, we dont see many posts of them failed or a holed block so again for certain.....

What I dont get is we dog the china cranks but the chebbie and ford folks seem to have no issues with the eagle kits, scat parts and make big power on them, are us mopar people just picky or what....

Ive never been told my steel china crank was my wink link in some builds, its always the "stock block" issue.

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ALL Chinese cranks I use get drop shipped right to the crank grinder-then to my shop. I'd say that it's pretty common to have issues. 80% need some sort of rework. Part of the deal.

MB

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All Chinese cranks should get drop kicked back to china,.... Just my opinion

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Yeah, then how many of the cheap assses are going to run $2,500. Callies or Crower cranks in their motors? Answer? just about nobody!

Its unfortunate, but that is how it goes.....

MB

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Simple

Everyone wants to play Mr Patriot and shitt all over the Chinese parts and thats fine. I think it sucks, too. But at the same time, people are blowing up 8.75 rears because they dont want to spend a few extra dollars on a Dana.

My only point is that I wont even take one of these cranks out of the box without first sending it to my crank guy. It's fine. The few extra $$ added on to the price is more than worth it to the customer to get it as good as it can be. Some(few) are perfect, and that is great. And let's face it, the average bread and butter 600 horse stroker build doesn't need a premium crank. Unfortunately we don't have an option of a US made and machined entry level product.


So Quick77, it seems like we are on the same page, no? Sorry to the OP for his trouble. It's never fun when it turns out that way.
MB

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well he called me today
to say the front is bent between #1 and #3 mains so
I asked if he could straighten it but he prefered to
cut it

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I'm a little confused. How will cutting it straighten it? All I'm seeing happening is you will have a bent crank that will turn freely in your engine

Kevin

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well he called me today
to say the front is bent between #1 and #3 mains so
I asked if he could straighten it but he prefered to
cut it

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I'm a little confused. How will cutting it straighten it? All I'm seeing happening is you will have a bent crank that will turn freely in your engine

Kevin

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Basically yes, it'll be bent by .002 but the mains
will be on centerline.... I can live with it out by
.002 at the counter weight

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well he called me today
to say the front is bent between #1 and #3 mains so
I asked if he could straighten it but he prefered to
cut it

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I'm a little confused. How will cutting it straighten it? All I'm seeing happening is you will have a bent crank that will turn freely in your engine

Kevin

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once it's ground it'll run true to the centerline. when grinding a bent crank, both the rods and mains get ground to effectively make ALL the journals run true again. the balance on that should be checked again also.

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Mr P is the crank you have one of the scat 9000 series cast versions? I just saw mancini has them for 300 bucks but probably not worth it if you need to have a bunch of work done to it.

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Might have been but I have to much into this one now...
I dont know what series it is.. its a forged Scat/MP
4" crank

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I have finally decided to put an American to work, even if it is only for a couple hours.

I'm going to buy a Callies, but it's real hard to spend 300 extra dollars when you don't have to.

At least I'll have some piece of mind that I won't be participating in the carnage pics thread.

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Interesting read. Surprised no one has mentioned the shipper. I would venture to guess that more stuff gets damaged in shipping than you may think. Just because it went from the "factory" to you doesn't mean 10 other people haven't tossed it around in between. Just sent a box of lifters back to Summit a few days ago. They came out of their factory ( individual ) packaging and were all jumbled together in the bottom of the Summit box. Summit's packaging wasn't that swift, but the box looked like it had been dragged behind the UPS truck for a few thousand miles.

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I can totlaly see a crank being damaged this way.

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It measured up good... I set it at .002 and .002
(mains and rods) with .007 end play.... I'm sure not
use to 1/16" rings... man do they DRAG... I got 28 ft lbs
to turn the assembly, my race stuff takes 18 ft lbs

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Ft-lbs?

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I can totlaly see a crank being damaged this way.

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The only aftermarket crank I ever bought was the BPE 4.125 - it was in a double coardboard box, inside was 2 bags of foam - one top and one bottom. It was not OOR when I checked it. I dont know what other manufacturers ship the cranks in but Rod's stuff was packaged right and it helped.

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It measured up good... I set it at .002 and .002
(mains and rods) with .007 end play.... I'm sure not
use to 1/16" rings... man do they DRAG... I got 28 ft lbs
to turn the assembly, my race stuff takes 18 ft lbs

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Ft-lbs?

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yep... that is the break away torque

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I can totlaly see a crank being damaged this way.

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The only aftermarket crank I ever bought was the BPE 4.125 - it was in a double coardboard box, inside was 2 bags of foam - one top and one bottom. It was not OOR when I checked it. I dont know what other manufacturers ship the cranks in but Rod's stuff was packaged right and it helped.

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I don't know Rob but sounds like he runs his business not have somebody else do it. So if a crank get banged up during shipping it is his dollar. Make sense to package well to avoid unneeded expenses.

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I really dont think it makes any difference if the delivery guy drops the china crank or the american crank they will get bent either way and will cost the same to repair either one! Could someone point me in the direction of the carnage threads with the china cranks that can prove that it was actually the cranks fault. Has anyone ever had to do any work to correct there american made crank?

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I can't point you in that direction but if my new stroker blows chunks I'm blaming the crank anyway.

Not like it was the fault of the hack that assembled it.

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I can totlaly see a crank being damaged this way.

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The only aftermarket crank I ever bought was the BPE 4.125 - it was in a double coardboard box, inside was 2 bags of foam - one top and one bottom. It was not OOR when I checked it. I dont know what other manufacturers ship the cranks in but Rod's stuff was packaged right and it helped.

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I don't know Rob but sounds like he runs his business not have somebody else do it. So if a crank get banged up during shipping it is his dollar. Make sense to package well to avoid unneeded expenses.

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that's the way they're boxed from China. Many other brands come exactly the same way.

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My Callies came just like that. Now I'll put some Chinese 4340 rods on it so I can get my butterflies back.

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Looks good Mr P

FWIW..... I have all my cranks checked by my crank guy before I do anything with them.. Just peace of mind

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This is the first crank I've had any problem with

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Well this is what it looks like today... still need
to do some clearance work on the valve covers(they
hit the rockers at the lip)... I will order up the
push rods next week... I'm going to have to use 5/16"
push rods because I'm real close to hitting the intake
ports... and I need to finish the pan

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Looks good Mr P

FWIW..... I have all my cranks checked by my crank guy before I do anything with them.. Just peace of mind

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This is the first crank I've had any problem with

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