Bob, Waldron's Antique Exhaust can set you up too. They need the manifold info and then the rest can be made up using stock 340 pipes. I think they sell the exhaust thing you need, or they used to. Tom
VEOTOM, from the bottom of the circle (where the pipe goes thru) to the "L", is ~4.5". +Accurate Exhaust ACC755Z. I paid $173 for the pair. I'll take $123+ride