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-   -   Which Steel FE Crank ? (http://www.clubcobra.com/forums/fe-talk/141318-steel-fe-crank.html)

FUNFER2 08-14-2018 02:12 PM

Which Steel FE Crank ?
 
Out of the top FE cranks, which are most used quality cranks ?

Not for racing or high RPM's, so a quality made and machined although cast's are cheaper, over a very nice forged crank, like a Crower, Callies......(beautiful, but....) :cool:

No billet's needed either. lol

I assume, it will be a stroker engine, but not positive yet. Street/strip use.

Scat, Eagle etc.

RockBit 08-14-2018 08:41 PM

Kevin - When Brent built my engine I asked him to use a forged crankshaft. I’m not a fan of casting from my professional life. He used a Scat forged piece. I drive my car on the street, no racing, but do get spirited occasionally. No complaints.

Dimis 08-15-2018 03:21 AM

If its scat vs eagle for fe build? Its scat every day of the week.
Sadly this forum alone has a history of eagle cranks going pop...

FUNFER2 08-15-2018 04:00 AM

I thought that people say it the engine doesn't see sustained high RPM as a racing motor, it's overkill and you'll pay at least $400 (+) extra for a forged. I'd rather have stronger
one but... ?

I too have heard that about Eagle.

Danr55 08-15-2018 07:44 AM

A forging is a homoginous blank that is hammered to form, heat treated, and ma hined/ground to form. This creates a very small.grained product that is stronger by nature than a poured/cast product the may or may not be exactly as designed. With the forging, the argin of error is much smaller than with a cast product. If you are concerned with liability of failire, go with the forging. If you want to save money, go with the cast product.

Morris 08-15-2018 10:24 AM

https://moldexcrankshaft.com/

The best..Moldex

FUNFER2 08-15-2018 11:38 AM

Quote:

Originally Posted by Morris (Post 1449638)

Their site is off-line for a while. What is thier apx price ?

patrickt 08-15-2018 04:18 PM

Quote:

Originally Posted by FUNFER2 (Post 1449639)
Their site is off-line for a while. What is thier apx price ?


IIRC, a Moldex steel billet, chromoly crank costs about 50% over what a SCAT 4340 costs, but it's the strongest crank available, and, you don't need it. Not by a longgggggg shot.

DanEC 08-15-2018 04:20 PM

When I had my FE built about 7 years ago, Keith Craft seemed to be fully committed to SCAT cranks which is what I have.

patrickt 08-15-2018 04:55 PM

Quote:

Originally Posted by DanEC (Post 1449649)
When I had my FE built about 7 years ago, Keith Craft seemed to be fully committed to SCAT cranks which is what I have.

From Barry R.'s book: In four years of testing and abuse, I have yet to break one of these [SCAT] cast 4.250-inch cranks—at power levels exceeding 750 hp. Intuitively, this has to be approaching the design limits of the material, though, and an alternate should be considered at that power level. … and FWIW I put a SCAT in mine as well.:cool:

Mongoose930 08-15-2018 06:17 PM

Barry R. built my engine and used a 4.25 cast crank.

https://www.enginelabs.com/news/vide...es-of-fe-fury/

davids2toys 08-16-2018 04:24 AM

Quote:

Originally Posted by Mongoose930 (Post 1449657)
Barry R. built my engine and used a 4.25 cast crank.

https://www.enginelabs.com/news/vide...es-of-fe-fury/

I cant any info on the crank in the article?

Mongoose930 08-17-2018 05:47 AM

Quote:

Originally Posted by davids2toys (Post 1449681)
I cant any info on the crank in the article?

Fair enough. I see now that it only mentions the 4.25 stroke. In any event, it is a SCAT cast stroker crank that was recommended by Barry R. for a targeted 550+ HP / torque street engine. For me, Barry's endorsement is all I needed.

davids2toys 08-17-2018 01:21 PM

I would be thinking the same...he has a great reputation for sure!

FUNFER2 08-17-2018 02:49 PM

Is the 4.25 bore safe for the 428 ?
I know the stroke can be 7.50

This looks like a sound kit.

Summit- $950

Bore (in): 4.280 in.

Crank Forged 4340 steel

https://www.summitracing.com/parts/s...gaAgn4EALw_wcB

patrickt 08-17-2018 02:57 PM

Quote:

Originally Posted by FUNFER2 (Post 1449767)
Is the 4.25 bore safe for the 428 ?

No, but it's just fine for the stroke.:cool:

FWB 08-17-2018 03:20 PM

Quote:

Originally Posted by FUNFER2 (Post 1449767)
Is the 4.25 bore safe for the 428 ?
I know the stroke can be 7.50

This looks like a sound kit.

Summit- $950

Bore (in): 4.280 in.

Crank Forged 4340 steel

https://www.summitracing.com/parts/s...gaAgn4EALw_wcB


that's a chevy stroker kit

FUNFER2 08-17-2018 06:24 PM

Quote:

Originally Posted by patrickt (Post 1449768)
No, but it's just fine for the stroke.:cool:

He wants a stroker for street fun with a lumpy cam.
The block he bought has been cleaned and bores checked, and all is fne to be continued.


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