340 adjustable LOCKING rocker arm kit

Email from Bill@PRW, when I enquired Nov of 2021


"Hello Steve,



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.



I checked a few online resources and the parts you are looking for are not readily available from standard sources. I am confident that Manton Pushrods can help you. I have provided contact information below.



Ask for Robin or Trevor. Direct link to Manton adjuster screw applications is here: Adjusting Screws – Manton Pushrods"