Isky 431 track question

[nick01psd]

I was wondering if anyone knew the lash adjustment for a old Isky 431 track cam for flathead ford... thanks

 

[kadillackid]

Out of my old Isky catalog

 

[petehoovie]

Out of my old Isky catalog
View attachment 438867

 

[frnkeore]

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

 

[whizzernick]

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.

 

[nick01psd]

Thanks guys!!!