Author Topic: Speedmaster  (Read 1080 times)

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475fetoploader

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Speedmaster
« on: August 05, 2020, 10:18:58 AM »
Ok so Jegs advertises Speedmaster 4.375 forged cranks, drop shipped starting 8-14-20. Has anyone heard if they’re any good, and really available?
1967 Fairlane 474 inch f.e. Top loader
1975 factory hiboy 428 4speed
Lots of big block Chevy stuff for sale since I finally grew up and got back to my roots

blykins

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Re: Speedmaster
« Reply #1 on: August 05, 2020, 10:25:28 AM »
I know of literally zero Speedmaster products that I would trust, especially ones that have to rotate at thousands of revolutions per minute while trying to handle massive forces acting upon it.
Brent Lykins
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jayb

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Re: Speedmaster
« Reply #2 on: August 05, 2020, 10:46:18 AM »
+1 on what Brent said on Speedmaster quality (or lack thereof).  Also, it wouldn't surprise me one bit if that date came and went Summit's site, and a couple days after that date it was pushed out by another month.  That same thing happened with my PAC valve springs that I tried to order through Summit.  Pushed out a month four times before I finally cancelled the Summit order and got them from a different distributor.
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

   

pbf777

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Re: Speedmaster
« Reply #3 on: August 05, 2020, 11:05:19 AM »
I know of literally zero Speedmaster products that I would trust,


     +1             ;)

     I wish the American public would stop with this determination, or maybe it's a syndrome, to purchase the CHEAPEST-SHYT-POSSIBLE!             :o

     Scott

HTRDHARLEY

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Re: Speedmaster
« Reply #4 on: August 05, 2020, 11:17:38 AM »
Anyway we can do a group order for 4.375 cranks through Callies or another quality American manufacturer?

475fetoploader

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Re: Speedmaster
« Reply #5 on: August 05, 2020, 01:09:05 PM »
4.250 it is! Thanks fellas.
1967 Fairlane 474 inch f.e. Top loader
1975 factory hiboy 428 4speed
Lots of big block Chevy stuff for sale since I finally grew up and got back to my roots

blykins

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Re: Speedmaster
« Reply #6 on: August 05, 2020, 01:13:22 PM »
I can do quantity order of custom Scat forged cranks in a 4.375" stroke, 2.200" rod journal.  Would probably take a quantity of 5-10 to get the price "do-able" and even then they'd be somewhere around the $1800-1900 range.
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports

475fetoploader

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Re: Speedmaster
« Reply #7 on: August 05, 2020, 02:02:25 PM »
I have too many projects like normal. Ok 428 block Edelbrock heads basically out of the box. It’s going into a 4x4 pickup. I have a mental block about cast cranks. What kind of limits does a 4.250 crank have, rpm/h.p. Let’s assume Molnar rod, diamond piston. Flat tappet cam.
1967 Fairlane 474 inch f.e. Top loader
1975 factory hiboy 428 4speed
Lots of big block Chevy stuff for sale since I finally grew up and got back to my roots

blykins

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Re: Speedmaster
« Reply #8 on: August 05, 2020, 02:09:30 PM »
You'd have no problem with a cast Scat crank in that application, plus a couple hundred horsepower. 
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports

HTRDHARLEY

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Re: Speedmaster
« Reply #9 on: August 05, 2020, 03:13:27 PM »
I can do quantity order of custom Scat forged cranks in a 4.375" stroke, 2.200" rod journal.  Would probably take a quantity of 5-10 to get the price "do-able" and even then they'd be somewhere around the $1800-1900 range.
You can put me down for two.

Joey120373

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Re: Speedmaster
« Reply #10 on: August 05, 2020, 04:45:31 PM »
And you can put me down for 1.

I am curious, as these are custom forging, would they all have to be the same, or could we ask for variances.

For instance, a 2.1 rod journal and longer stroke? I asked about this I. Another thread, still not sure it’s worth messing with but figured I would ask anyway.

I am assuming that these are all cut on CNC machines so what would it matter to change it up a bit..

blykins

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Re: Speedmaster
« Reply #11 on: August 05, 2020, 05:45:45 PM »
Probably so.  If I can get a couple more guys interested, I'll see what my Scat rep says.
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports

Joey120373

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Re: Speedmaster
« Reply #12 on: August 05, 2020, 07:00:53 PM »
That would be awesome. Thanks Brent.

HTRDHARLEY

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Re: Speedmaster
« Reply #13 on: August 06, 2020, 06:35:07 AM »
That would be awesome. Thanks Brent.
Great, Thank you.

Lars 704-363-9913

HTRDHARLEY

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Re: Speedmaster
« Reply #14 on: August 11, 2020, 02:08:26 PM »
Anyone else interested?