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  1. 67Dart273

    Big block exhaust is still loud

    You need an interior, and you need resonators.
  2. 67Dart273

    360 Magnum Swap having trouble finding a header that will fit

    Hell I thought that was (part of) the entire reason for the Borgenson box...exhaust/ header clearance
  3. 67Dart273

    360 la headers & straight pipe

    Compression, cam and horsepower make sound. Have you been behind it with someone else "on" it? Might be louder than you think!
  4. 67Dart273

    Headers vs 340 manifolds

    LOL '70's--80's smogger Jeeps might argue that.........
  5. 67Dart273

    Running open shorty headers

    I don't see a problem other than making sure nothing near the outlets will get toasted, such as fuel system, brake tubes, starter wiring. etc etc If you are hinting about burned valves I would not worry.
  6. 67Dart273

    1971 Duster exhaust smell in cabin after new muffler and tail pipe

    As I tried to point out earlier---holes into the body--
  7. 67Dart273

    1971 Duster exhaust smell in cabin after new muffler and tail pipe

    Also, ANY leaks into the body ANYWHERE can suck in exhaust. If you ever notice when you drive, parts of the rear of the car get dirty, especially when raining, as there is a vacuum formed at certain places. The trunk, quarters, floor pan, ANY hole(s) into the body. Trunk...
  8. 67Dart273

    Reaching plugs with Hedman headers

    Be careful with 5/8 plugs. Make sure you get the correct "reach" (the threaded part) and make sure that if you have gasketed (LA) heads that the 5/8 you buy are not for "tapered seat" (no gasket)
  9. 67Dart273

    Reaching plugs with Hedman headers

    I hadn't had that trouble, have they changed the bends? Don't be afraid to modify tools. "Back in the day" I've changed plugs on several cars that for reasons or another had difficult plugs. Took an old box end wrench, cut it, and welded the stub box end back on the...
  10. 67Dart273

    Welding ground...don't do this!

    Uh, no............ The current that goes through you is what kills you but it is DRIVEN by voltage. And "most welders" are not necessarily 20V, either. My mig on higher settings is something above 40 or so, and many stick welders are up around 80V or so open circuit.
  11. 67Dart273

    Welding ground...don't do this!

    Many people forget that welders generate lethal voltages. Open circuit on a stick is enough to kill you in a wet/ very conductive situation.
  12. 67Dart273

    Exhaust sounds True duals vs X-pipe or H-pipe.

    I REMEMBER the soundS of the stock hi performance Mopars, 68--later RR, GTX, Dart, Duster etc But I think they all had crossovers. The B bodies, anyhow. I still remember arguing with my 69 getting the gearbox out. The exhaust was all welded, and the "H" pipe kept the...
  13. 67Dart273

    venturi pcv

    NO KIDDING I've never seen one. You guys know what a "hydraulic ram" pump is? My Gramps had one. runs on water flow from gravity above it, pumps "part of it's own water up higher yet.
  14. 67Dart273

    venturi pcv

    WAY WAY back before I graduated high school, about 65 this was, we were having a car wash at a local service station. I knew the owner, went to school with his son. Owner was showing me their vacuum for cleaning cars.......hooked to an air hose.
  15. 67Dart273

    venturi pcv

    ..........and Moroso....... https://www.moroso.com/pub/media/instructions/25900_inst.pdf
  16. 67Dart273

    venturi pcv

  17. 67Dart273

    venturi pcv

    Boy I have no idea.......other than to follow what "people who are supposed to know" and we all know that is many times right, sometimes wrong. Found this.. http://www.moparts.org/Tech/Archive/race/pic/evac.gif
  18. 67Dart273

    Rotate U-Bolt Exhaust Clamp

    !!!!!!!!!!!!!!!!!!!!!!!!!!! YEH !!!!!!!!!!!!!!!!!!!!!!!!!!
  19. 67Dart273

    Rotate U-Bolt Exhaust Clamp

    I used to at least install with the bolts horizontal, thinking "that curb" might pay off some day
  20. 67Dart273

    Venturi pcv

    Last I knew the "cheap" valves to use were the one way smog pump valves like typically used on GM/ Ford
  21. 67Dart273

    318 exhaust port differences

    On a side note I've never known anybody that had a car "laying around" LOL and you must have an awesome grandaughter. "Something did right"
  22. 67Dart273

    318 exhaust port differences

    I think the gaskets are key. They are touting the fit Ed heads, etc. Perhaps a more "generic" for lack of better set might fit "smaller." I had Hedmans on a ?70? 318 and don't even know what gaskets.......bolted 'em on forgot 'em If I had to guess I'd say these were they...
  23. 67Dart273

    Side Exit Exhaust--Is there Room?

    Bear in mind that you are eliminating the "u turn" over the axle, as long as the bends are done properly, no reason it should be that restrictive.
  24. 67Dart273

    Side Exit Exhaust--Is there Room?

    ...............Which is why the TA/ AAR look alike systems are done as they are. I used to have marvelous pipes under the RR but that is a larger car, and even then, having the mufflers further up front for sure denegrated ground clearance some CES340-AARTA-AAR/TA Complete Exhaust System
  25. 67Dart273

    What would you do?

    If you are not going to put "much performance" into the engine, then "B" Even a mild cam and 4bbl will do fine with "B"
  26. 67Dart273

    Shipping Damage New Headers

    I would at least shoot for a discount.
  27. 67Dart273

    Turbo Pro Muffler - Optimal Flow, No Drone, No Resonance

    Do you have any "feel" for how close in sound level these are to the original actual Corvair turbo mufflers? (I used to run these on my old Landcruiser 360 then 340 and then 318 a few years) Those had a great sound and were not obnoxiously loud
  28. 67Dart273

    before the axle turn downs

    I REALLY liked my old RR pipes which I don't have a photo of. I realize it's a larger platform, more room. IT came off the collectors, balance pipe, to the muffleres, then bent out with NICE under-the-rocker and out "baloney sliced" in front of the tires. Looked and sounded...
  29. 67Dart273

    magnum manifolds

    I have never understood, why a "company" which built some incredibly beautiful manifolds for hemis and the B/RB stuff never built a decent performance exhaust for the small blocks!!!
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