Author Topic: 428 crank key  (Read 1266 times)

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happystang

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428 crank key
« on: October 18, 2018, 12:46:34 AM »
Does anyone have a link or recommendation for a crank key? I'm missing the one for the harmonic balancer. I have the one for the crank spacer and it fits well.

I ordered this kit for the balancer key:

https://www.summitracing.com/parts/dur-fkf-2/overview/make/ford

However, the key provided seems to be too tall, fits loosely, and is not long enough. It's also a weird round shape?

jayb

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Re: 428 crank key
« Reply #1 on: October 18, 2018, 11:43:46 AM »
All you need is some 1/4" square key stock.  Cut off about 7/8" and save the rest for the next motor.  A good hardware store should have it, or you can get it from McMaster Carr:

https://www.mcmaster.com/key-stock
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

   

happystang

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Re: 428 crank key
« Reply #2 on: October 18, 2018, 02:04:53 PM »
All you need is some 1/4" square key stock.  Cut off about 7/8" and save the rest for the next motor.  A good hardware store should have it, or you can get it from McMaster Carr:

https://www.mcmaster.com/key-stock

Hi Jay,

Thank you for the link! Do you have any suggestions on what metal to go with? I see they offer a steel, alloy, and stainless steel key stock in both undersize and oversize.

jayb

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Re: 428 crank key
« Reply #3 on: October 18, 2018, 02:06:31 PM »
Years ago I bought a foot of the alloy steel, standard size stock, available at the link above.  That's all I've ever used.
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