273 rockers arm lock kit

Email from PRW when I enquired for oem style...

PRW Mopar ball end and cup end adjusters are 7/16”-20 designed for PRW Rocker Arms with 5/16” ball or cup end pushrods. If you are looking for 3/8”-24 Mopar OEM Ball-Style Adjuster Screws, PRW does not have those to fit your application.



We do have strong lightweight Valve Lash Lock Nuts in 3/8”-24 (PRW PN: 1004502). These are available for your application and others that use 3/8”-24 adjusters. All PRW fasteners are SCM-4135 or 4140 alloy steel that are higher tensile strength than Grade 8.
The PRW kit is the one I got. Thread size is not correct. I will check out Smith Brothers. Even the lock nuts I have found so far are not what I would like. I have only found them with 9/16 head and I would like 7/16 if possible.