Can anyone tell me what is the rocker arm ratio for EBU-6531-A1?
I was excited to read Walt Knuckles on line post concerning valve lash adjustment until I looked at my number. He only listed ECG 6564-B2.
Is the ratio 1.43:1?

 

Look at Tim McMasters site. Or John Mummerts. They both have lots of technical info.
But, yes, I believe those are the 1:43 rockers. What are you working on?

 

Thank you for your reply. I have a 1959 F100 with 292.