Crankshaft ID

General engine tech -- Drag Racing to Circle Track

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sheppard00
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Crankshaft ID

Post by sheppard00 »

Need help identifying this crank. Already tried scat' s website, and a couple hrs on the net with no avail.
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1972ho
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Re: Crankshaft ID

Post by 1972ho »

Well it’s got scat’s name written on it.
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Re: Crankshaft ID

Post by Ericnova »

1972ho wrote: Tue Jan 16, 2018 3:06 pm Well it’s got scat’s name written on it.
Looks like that is actually CAT?? Cal Auto Transpeed

3.500" or 3.480" stroke as a guess, based off part number.
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sheppard00
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Re: Crankshaft ID

Post by sheppard00 »

It is a 3.48 stroke. I'm trying to figure out what metal it's made out of.
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mark sheppard
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sheppard00
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Re: Crankshaft ID

Post by sheppard00 »

Another pic
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Old as Dirt
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Re: Crankshaft ID

Post by Old as Dirt »

Guess you could smack the part with a wrench hung on a wire or supported by a small point. steel will go RINGGGGGGGGGgggggggg....... ductile iron will go DING.. cast iron will go THUD. ymmv.. :twisted:
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sheppard00
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Re: Crankshaft ID

Post by sheppard00 »

Definitely rings. Have a cast scat crank here also, as well as some stock cranks to compare.
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1972ho
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Re: Crankshaft ID

Post by 1972ho »

That 43 at the end could mean 4340 there catalog shows 4340 as f-43,So maybe.
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Re: Crankshaft ID

Post by sheppard00 »

Scat contacted me back. Current pn is 435034805700 so it's a descent crank.
mark sheppard
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