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Author Topic: 4.375 Cranks, are they gone?  (Read 7319 times)

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mbrunson427

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Re: 4.375 Cranks, are they gone?
« Reply #15 on: August 19, 2019, 09:00:02 AM »
Blair sent this over to see if I could figure how to load it up on here. The only way I could get it done is to load it up on my youtube. Video is blurry, but the sound is nice!

Not my engine by the way

https://youtu.be/HpOKIP6aa50

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Mike Brunson
BrunsonPerformance.com

Barry_R

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Re: 4.375 Cranks, are they gone?
« Reply #16 on: August 19, 2019, 10:12:49 AM »
We did a 4.750 SOHC crank a couple years ago.  I recall it taking nearly a dozen slugs
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jayb

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Re: 4.375 Cranks, are they gone?
« Reply #17 on: August 19, 2019, 11:40:59 AM »
That was Andy's crank, I figured if he could do, so could I  ;D  Barry, do you remember what brand that crank was?  Scat maybe?
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Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

Barry_R

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Re: 4.375 Cranks, are they gone?
« Reply #18 on: August 19, 2019, 04:54:58 PM »
Quote from: jayb on August 19, 2019, 11:40:59 AM
That was Andy's crank, I figured if he could do, so could I  ;D  Barry, do you remember what brand that crank was?  Scat maybe?

It was/is indeed.  A Scat billet and custom steel rods from R&R (no longer doing those from what I hear).
We had the clearance the entire innards of that Pond block.
I thought I was the first to go that big on an FE, but the guys at Scat said they had one in their records from "once upon a time"...
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KMcCullah

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Re: 4.375 Cranks, are they gone?
« Reply #19 on: August 19, 2019, 10:36:10 PM »
Quote from: mbrunson427 on August 19, 2019, 09:00:02 AM
Blair sent this over to see if I could figure how to load it up on here. The only way I could get it done is to load it up on my youtube. Video is blurry, but the sound is nice!

Not my engine by the way

https://youtu.be/HpOKIP6aa50

Wow! Now that is some FE thunder. Nice work, Blair! Thanks for putting the video up, Mike. Waaay sexy looking header too. I hope the proud owner of that engine comes on and tells us about it.


I've been thinking about offset grinding my 4.375 crank for a while. Anybody tried that yet?
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Kevin McCullah

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Re: 4.375 Cranks, are they gone?
« Reply #20 on: August 19, 2019, 10:47:55 PM »
Might be a little scary Kevin !  You would need to go to 2" crankpin, which means re-heat treat.  The overlap would be reduced......not sure the RPM crank can stand it.  Might be better to do a custom forged Scat, and then sell what you take out.....
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Blair Patrick

427HISS

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Re: 4.375 Cranks, are they gone?
« Reply #21 on: September 05, 2019, 02:12:11 PM »
Man, what was the screaming RPM ?  Wow !

Quote from: mbrunson427 on August 19, 2019, 09:00:02 AM
Blair sent this over to see if I could figure how to load it up on here. The only way I could get it done is to load it up on my youtube. Video is blurry, but the sound is nice!

Not my engine by the way

https://youtu.be/HpOKIP6aa50
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turbohunter

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Re: 4.375 Cranks, are they gone?
« Reply #22 on: September 05, 2019, 03:24:56 PM »
X2 on the wow
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Marc
'61 F100 292Y
'66 Mustang Injected 428
'66 Q code Country Squire wagon

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