78Madallion318

If oil is running past the valve guides and sealants, or to troubleshoot whether or no this is the problem...then I put a few drops of brake fluid down into the valve cover. Just a few. It helps rehighdrait the guides, seals/gaskets in there. If this corrects the problem, then I usually drive it for a while then do an oil change; good as new. I have done this on 225's, 318's, 2.0L, 350's. Hope this helps.

Today's conventional oil is definitly far better than anything that they had back in the 40's. I think you would do fine going with just straight oil and not the synthetics. Synthetics are really meant for the high compression, racing, weekend drags. My personal experience with synthetics, with a classic everyday driver, were not good. The synthetic burned out what was holding the cylinder wall together, and did not fill the cracks, divits, little nicks back in. Making it a whole lot rougher in there. Then if it gets too bad then it passes the rings, then a whole other problem. Of course I switched back to regular oil before that happend. Since there are long periods inbetween driving, engine being newly restored, you change regularly, I wouldn't forsee a problem with regular, mineral based oil. Especially being an older block, metalergy being of 40's chemistry.

White round lights, "too small for headlights" (if they are), probably Parking Lights from a late 50's to 1960 Dart. Pics would be best.

Hello, I am curious, will a long (30") diesel muffler help with better flow, and quiet my dual exhaust? I will be going to dual exhaust on my 78 Diplomat Madallion 318 soon. I will stick with iron manifolds. With iron manifolds I will probably get 3". I wish to get good mufflers. I fear that flowmasters will be too loud, for a cruiser. I have read, also, that flowmasters accomidate the high rpm range and might extract some low end torque. I have read that the best thing is to find the longest muffler you can get. I think this would preserve the Low end torque. Much like the SonoRam having to have longer ram tubes to boost the mid RPM's torque, long mufflers would help equalize back pressure at the desired RPM levels. Just my opionion from what I have read and concluded (theory). What do you think is best for my criteria? Will a long diesel muffler work? Thanks for all of your help.