Not a mopar guy, but is that 392 the same pattern as a 426 or a 440?
Glenwood has 426/440 motor plates
Ive built my own sbc plates, seen others built ls, bbf, bbo, even pontiac plates
Bassetts headers might be available too
Tom at JBP might know whats available too
where theres a will, theres a way
And welcome to SCJB too
Pics, Pics, Pics
Daniel
Mash on it