preferred initial valve lash on a fresh rebuilt stock 292


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By AllenV - 2 Years Ago
Hi, new member here.
   I am nearing completion on a complete rebuild of my 292.  I am keeping everything as stock as practical. Focusing only on what is relevant to my question:
The block is an EDB-E casting and the heads are ECL-C.
New valves and seats have been installed as well as complete set of “stock” push rods. The push rods are Mummert’s PR-1221-HP, LONG Pushrod for 54-55 and 60-64 heads.
The cam is a new "stock" grind and the lifters are new.  

Now my question:  What is the preferred setting of the valve lash for initial start up and run in?  I have seen numbers from 0.015" to 0.019". Of course, I need numbers for a cold engine.
Thank you
By miker - 2 Years Ago
Usually a cam comes with a card showing the specs and the lash settings. Best practice is usually to follow the specifications unless you know otherwise.
By Joe-JDC - 2 Years Ago
You can't go wrong with .019" cold with both an iron block and heads.  Joe-JDC
By Ted - 2 Years Ago
Because it is a stock replacement camshaft, the 0.019” valve lash value is a good number.  With all the new parts, you can expect some settling to occur during the break-in process so be sure to check the lash again after the engine has been thoroughly warmed up.
By AllenV - 2 Years Ago
Thank you.  It shall be 0.019"
By 55blacktie - 2 Years Ago
Ted, is .019 hot or cold? 
By Ted - 2 Years Ago
55blacktie (3/28/2023)
Ted, is .019 hot or cold?

For iron heads, it’s 0.019” hot.  With iron rockers, 0.020” cold usually nets 0.019” hot.
By AllenV - 2 Years Ago
thank you for the clarification. I will set to 0.020" cold