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Hello to all,

does anyone have any information on the Ford Motorsport forged crankshaft P/N M-6301-B600. The info I'm after is on material type, where it is a non-twisted or conventional forging, the sizes of the mains ect, and has anyone had any good or not so good experiences with the crank.

Thanks
Simon

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Mark J.
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63.24.6.151 AMS 6415
No score for this post September 16 2001, 11:36 PM

Crank pin is 2.2, Mains 3.0, Stroke 4.5 if you are thinking of the M-6303-B600. Material is AMS 6415 Steel
Later,
Mark J.

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Simon
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203.164.2.198 What type of forging?
No score for this post September 17 2001, 10:08 AM

Is the crank a convention twisted forging or a non-twisted forging? from what I've been able to find out AMS 6415 is the mil spec designation for 4340. Is that right?

thanks again

Simon


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Mark J.
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63.24.6.150 4340 Airmelt
No score for this post September 19 2001, 2:18 AM

Alloy steel, 4340 Airmelt. Specifications: MSS 7-28, MIL-S-5000, DMS 1555, AMS6409, AMS 6415, AMS 6484.
AMS= Aerospace Material Specifications developed by the SAE Aeronauticals Committee. This has special meaning to some. The crank is non-twist as far as I know, which is not much. The raw forging is used by all I think. It is only as good as the person doing the finishing of it. Crower does a good job, that is what is in the 514 with a BOSS snout. I use an LA Billet with the BBC snout in my 598. I do not know if the SVO forging has enough material to do a BBC snout but at least get it shortened to a BOSS length. Engine systems has a shortened spacer to use with the BOSS length snout. The crank will hold up good if like I said, some one knows how to finish it. I had a bad experiance with Crankshaft Specialist.
Hope this helps. I had the exact metal content at one time but can't get my hands on it right now.
Mark J.

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Simon
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203.164.2.198 BBC snout on BBF billet crank att. Mark J
No score for this post October 1 2001, 10:57 AM

G'day Again
I've decided to go with a locally (Australian produced) billet crank. My question is what are the dimentions of the BBC snout and why did you go for this in preference to the standard ford? Also how are you driving the Cam? I assume the Chebby snout is a larger diameter than the fords (from you previous post) so are you using a custom gear drive or something else?

Thank you again

Simon


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Mark J.
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63.24.6.173 Snout size
No score for this post October 2 2001, 2:19 AM

Simon,
The standard Ford is very under nourished in diameter & it uses that goofy spacer. After having a snout break on a steel crank, I had Jeff Fowler of Fowler Engines spec me out a crank from L.A. Billet that would be more reliable. Fowler also supplied me with a Milodon gear drive to accommodate the larger snout. I had to weld up the timing chain cover around front seal area & cut to BBC size seal. The gear drive is great & it does not transmit any wild harmonics that I have seen signs of. Sorry I don't have the BBC diameter to give you. Crank grinder can fix you right up. Alot of people stay with the standard Ford & have no problems; but at least shorten it to the Boss length. I just can't afford to take any more chances.
Hope this helps. If there is anything I can do for you just give a shout.
Mark J.

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Simon
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203.164.2.198 What balancer are you running Mark J?
No score for this post October 12 2001, 9:53 AM

So I've bitten the bullet and gone with the Milodon gear drive. (I spoke to another fella over here who is running one in his low 8 sec 514 Drag car, with glowing reports). I'm having the bore of the crank gear increased to BBC size and the keyway relief increased. My question is what Balancer are you running? and is it internally or externally balanced?
I hope to run this engine with mild <10PSI boost, so I'm also wondering if your 598 is blown or normally aspirated, and if blown what are you doing about the blower drive setup as far as the bottom pulley is concerned. If anyone else has experience in this matter I would be appreciative of any input.

thank you all yet again

Simon


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Mark J.
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63.29.25.42 ATI
No score for this post October 12 2001, 10:22 PM

Simon,
I am using an ATI aluminum shell balancer, internally balanced for a BBC. This is off the shelf stuff. I did open up the Key way to match the crank. Just remember to rework the front cover for the larger seal. It was set up with two key slots in case I ever used a blower. I am normally aspirated. 8.0's 2640 lbs.
You might e-mail Jeff Fowler of Fowler Engines Inc. ([email protected]) to get some help on the blower stuff. The guy has always treated me fair & blower engines are their specialty.
Hopes this helps,
Mark J.

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gregaust
(no login)
203.17.162.33 australian billet crank??????
No score for this post October 2 2001, 5:53 AM

Simon,can you give some more info on the billet crank you have decided to use.Who makes it and what is the stroke + b.e dimensions and where are they available + price.Any info appreciated..Thanks.

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Simon
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203.164.2.198 Australian Billet Crank Info
No score for this post October 2 2001, 9:37 PM

G'day,

The crank is a custom being made up for me by a Victorian company CRANKSHAFT REBUILDERS. Contact info below, The snout is being turned to BBC dimensions and the BE size also to BBC 2.200, stroke 4.5" the material is 4340 and the price is about $4500AUD. (though they will turn up the crank to any dimensions you want) This compares well with importing a crank once shipping and currency conversion is considered. I was quoted about $2500USD and $400 USD shipping for a scat billet crank. that works out to about $5800AUD landed here. I've had work done by the machine shop before and was to a high standard.

Crankshaft Rebuilders Pty Ltd

ADDRESS
31 Cottage St
Blackburn, VIC, 3130
Australia Ph: (03) 9894 0000

Fax: (03) 9894 0011


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harry
(no login)
210.50.57.8 more billet info
No score for this post October 3 2001, 5:47 AM

sainty engineering in sydney have just done a billet crank for a 500 cube ,using the same material that they make the top fuel cranks from,there three valve engine has a bottom end loosely based on the 460,i believe the cost was around 3500 aussie hope this helps ,give stan a call harry
 
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