Keith Craft Inc.- We service what we sell!!! Check out our Cobra engines!!! We build high performance racing engines and components for the fast pace strip racing industry as well as daily drivers who want to be FIRST!!!

FE Forums sponsored by Keith Craft Inc.


Go Back   Club Cobra > Engine Building, Tuning, and Induction > FE TALK

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

MMG Superformance
Nevada Classics
Main Menu
Nevada Classics
Nevada Classics
Keith Craft Racing
Keith Craft Racing
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
Keith Craft Racing
March 2024
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            

Kirkham Motorsports

Like Tree1Likes
  • 1 Post By patrickt

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 08-14-2018, 02:12 PM
FUNFER2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2002
Location: Eagle, Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,298
Not Ranked     
Default 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....)

No billet's needed either. lol

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

Scat, Eagle etc.
__________________
Regards,
Kevin
Reply With Quote
  #2 (permalink)  
Old 08-14-2018, 08:41 PM
RockBit's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2014
Location: Dallas, TX
Cobra Make, Engine: ERA #812 427/482 FE
Posts: 495
Not Ranked     
Default

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.
__________________
Chris
Reply With Quote
  #3 (permalink)  
Old 08-15-2018, 03:21 AM
Dimis's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2008
Location: Melbourne, Vic
Cobra Make, Engine: Some polish thing... With some old engine
Posts: 2,286
Not Ranked     
Default

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...
__________________
Reply With Quote
  #4 (permalink)  
Old 08-15-2018, 04:00 AM
FUNFER2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2002
Location: Eagle, Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,298
Not Ranked     
Default

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.
__________________
Regards,
Kevin
Reply With Quote
  #5 (permalink)  
Old 08-15-2018, 07:44 AM
Danr55's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2007
Location: Mesa, AZ
Cobra Make, Engine: Contemporary Classic, 428 FE CCX 3069
Posts: 7,500
Not Ranked     
Default

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.
__________________


Dan in Arizona
CCX3209


"It's a great car and I love it, but it doesn't do 'SLOW' very well."
Reply With Quote
  #6 (permalink)  
Old 08-15-2018, 10:24 AM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2003
Location: Gurnee, IL
Cobra Make, Engine: Kirkham #259
Posts: 1,393
Not Ranked     
Default

https://moldexcrankshaft.com/

The best..Moldex
__________________
Morris
Reply With Quote
  #7 (permalink)  
Old 08-15-2018, 11:38 AM
FUNFER2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2002
Location: Eagle, Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,298
Not Ranked     
Default

Quote:
Originally Posted by Morris View Post
Their site is off-line for a while. What is thier apx price ?
__________________
Regards,
Kevin
Reply With Quote
  #8 (permalink)  
Old 08-15-2018, 04:18 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,888
Not Ranked     
Default

Quote:
Originally Posted by FUNFER2 View Post
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.
Reply With Quote
  #9 (permalink)  
Old 08-15-2018, 04:20 PM
DanEC's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2009
Location: Little Rock area, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,480
Not Ranked     
Default

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.
__________________
ERA 782 Running
https://www.youtube.com/watch?v=Cfge...b1-77fqwFRu7c]
Reply With Quote
  #10 (permalink)  
Old 08-15-2018, 04:55 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,888
Not Ranked     
Default

Quote:
Originally Posted by DanEC View Post
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.
Reply With Quote
  #11 (permalink)  
Old 08-15-2018, 06:17 PM
Mongoose930's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 716
Not Ranked     
Default

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

https://www.enginelabs.com/news/vide...es-of-fe-fury/
Reply With Quote
  #12 (permalink)  
Old 08-16-2018, 04:24 AM
davids2toys's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2006
Location: Southbury, ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 922
Not Ranked     
Default

Quote:
Originally Posted by Mongoose930 View Post
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?
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
Reply With Quote
  #13 (permalink)  
Old 08-17-2018, 05:47 AM
Mongoose930's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 716
Not Ranked     
Default

Quote:
Originally Posted by davids2toys View Post
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.
Reply With Quote
  #14 (permalink)  
Old 08-17-2018, 01:21 PM
davids2toys's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2006
Location: Southbury, ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 922
Not Ranked     
Default

I would be thinking the same...he has a great reputation for sure!
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
Reply With Quote
  #15 (permalink)  
Old 08-17-2018, 02:49 PM
FUNFER2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2002
Location: Eagle, Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,298
Not Ranked     
Default

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
__________________
Regards,
Kevin

Last edited by FUNFER2; 08-17-2018 at 02:57 PM..
Reply With Quote
  #16 (permalink)  
Old 08-17-2018, 02:57 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,888
Not Ranked     
Default

Quote:
Originally Posted by FUNFER2 View Post
Is the 4.25 bore safe for the 428 ?
No, but it's just fine for the stroke.
AC Ventura likes this.
Reply With Quote
  #17 (permalink)  
Old 08-17-2018, 03:20 PM
FWB's Avatar
FWB FWB is offline
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2008
Location: Williamsport, PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
Not Ranked     
Default

Quote:
Originally Posted by FUNFER2 View Post
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
__________________
Fred B
Reply With Quote
  #18 (permalink)  
Old 08-17-2018, 06:24 PM
FUNFER2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2002
Location: Eagle, Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,298
Not Ranked     
Default

Quote:
Originally Posted by patrickt View Post
No, but it's just fine for the stroke.
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.
__________________
Regards,
Kevin
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 04:30 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy