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hmmmm,do you think the 429 steel truck crank would be stronger than a scat..scat says that iron cranks have a tensile strength of 90000 lbs..they reckon factory forged steel is rated at 105000 lbs,and there 9000 series cast steel jobs are also rated at 105000 lbs..
a 4130 is rated at 120000 lbs and there 4340 is 140000 lbs..thats if any gives a ****, but im just curious on some thoughts,i know of a guy who turns the 3.59 inch stroke journal down to 2.2 and gets 3.89 inches and gets around 1400hp with no probs yet,if thats the case and there popular how come not many people go with this idea..im from aus so i wouldnt know but arent these cranks available from wreckers..??

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mister460
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198.26.130.37 All BB Ford cranks...
No score for this post October 29 2001, 4:02 PM

All BB Ford cranks are cast steel. They seem to be able to handle just about anything you can throw at them. Never seen on break. But I have seen a Chevy steel crank split a block in half!

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StickBBF
(no login)
205.158.104.42 Cast-IRON or Cast-STEEL...?
No score for this post November 5 2001, 9:50 AM

Mister460:
I thought all OEM 385 Series 429/460 crankshafts were cast-iron; not cast-steel. Whereas the first line of typical Scat and Eagle cranks are cast-steel and then move up to forged-steel..... The forged piece is easily determined from the cast-iron piece by the wider parting line.

Does anyone know of a quick visual test to determine the difference between cast-iron vs. cast-steel?

StickBBF


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bobguthery
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64.12.105.39 wanted 557 kit for 460
No score for this post November 7 2001, 1:17 AM

alui heads 460 torker manifold 1050 dominater wanted

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D.W.Baker
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206.148.224.132 More thoughts on crankshafts.
No score for this post October 30 2001, 10:28 PM

Yes I too have seen the 429 shaft offset ground to yeild more stroke,with VERY good results.I would think the advantage to the use of the Ford shaft would be that you are getting a previously used seasoned crank.I would feel more comfortable with that than a new one.I would also suggest nitriding the shaft after grinding ,for more surface durability.

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Steve
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209.140.200.254 BBF Crankshafts
No score for this post November 1 2001, 8:30 AM

All BBF crankshafts are cast iron, not cast steel. Eagle sells cast steel crankshafts (std 3.850 stroke and a stroker) for $399. These journals are huge on 385 Ford so cast iron is supposedly good to 800-900 HP but for $399 it is cheap insurance.

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Cwagner
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205.242.224.123 Eagle cranks
No score for this post November 4 2001, 6:51 PM

Give us a clue where to buy Eagle cranks and rods? Do these cranks use Ford rods or chevy? Thanks.

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Kurt
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158.31.221.28 Eagle Cranks
No score for this post November 5 2001, 2:07 PM

Check at musiccityrodshop.com
4.140 stroke for $384 I believe.
$1399 for 4.14 crank,6.8 H-beam chevy rods,SMC forged pistons,bearings and rings.
Pretty tough price to beat.
 
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