This listing covers MY’s 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952 1953, and 1954 Mercury’s with the stock flathead V8.
Convert your flathead Mercury to a dual exhaust with Waldron’s Dual Conversion Kits! This dual conversion kit bolts directly to the stock manifolds (only). Conversion kit consists exhaust pipes, glasspacks, and tailpipes, along with gaskets and clamps. 1949-53 model years will also receive a blocker plate. Hangers are not included.
You may opt to change your system from glasspacks to mufflers (for an additional cost) in the check out process.
- 1939-41; LS front & rear exhaust pipes start out at 1½” then bump up to 1 7/8″ at the muffler, RS exhaust pipe is 1 7/8″ with LS/RS tailpipes at 1 5/8″.
- 1942-48; LS front & rear exhaust pipes start out at 1½” then bump up to 1 7/8″ at the muffler, RS exhaust pipe is 1 7/8″ with LS/RS tailpipes at 1¾”.
- 1949-53; LS front & rear exhaust pipes start out at 1½” then bump up to 2″ at the muffler, RS exhaust pipe is 2″ with LS/RS tailpipes at 1¾”.
- 1949-51 with rear exit DS manifold; LS exhaust pipe starts out at 1 5/8″ then bump up to 2″ at the muffler, RS exhaust pipe is 2″ with LS/RS tailpipes at 1¾”.
Ruth –
Back in 2021 Patrick from Nova Scotia, with a 1947 Mercury and flathead V8, emailed us to say this about the dual conversion with glasspacks we built for him “A perfect fit and awesome sound. Please pass along my thinks to the craftsman who made it. Many thanks to all.”