1965 273 HIPO FRONT MUFFLER NEW OR USED PN 2534467
Try autoplicity.com with your factory part # in the search box & see if anything comes up ? ( or NAPA store for same see if they have any NOS Walker Muffler in stock & see what Surfaces ?)
Goodluck.
PS it sounds like you want basically a 'gutted resonator " to get that original factory sound ?.
You Could also try jcw's search engine & see what surfaces, even ordered to see what arrives, they are that. Cheap enough ( but apart from old boxed labeled NOS, you'll have best luck with old inventory Walker or may by Apex)
Cheers Trev.
