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Old 08-10-2020, 08:05 PM   #1
nick01psd
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Default Isky 431 track question

I was wondering if anyone knew the lash adjustment for a old Isky 431 track cam for flathead ford... thanks
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Old 08-13-2020, 12:14 AM   #2
kadillackid
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Default Re: Isky 431 track question

Out of my old Isky catalog



20200813_165444~2_resized.jpg
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Old 08-13-2020, 12:36 AM   #3
petehoovie
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Default Re: Isky 431 track question

Quote:
Originally Posted by kadillackid View Post
Out of my old Isky catalog
Attachment 438867
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Old 08-13-2020, 06:26 PM   #4
frnkeore
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Default Re: Isky 431 track question

The 431, is a 274 duration cam, Howards, has 2 pretty close versions of that lobe:

Howards Cams
.020--.050--.200---Lift
272.7 248.0 175.7 0.412
274.8 250.0 177.6 0.415

This is Howards biggest cam
286.8 262.0 189.5 0.440
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Old 08-14-2020, 08:33 AM   #5
whizzernick
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Default Re: Isky 431 track question

I ran a 296 59L block with a 431 in 1962. My best was 110 mph with a 15.31 et This was in my 1933 roadster. The 33 pulled hard.
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Old 08-16-2020, 09:17 PM   #6
nick01psd
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Default Re: Isky 431 track question

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Thanks guys!!!
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