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I have a lockup 727, but when I had the converter built I didnt mention that as I didnt know. Same driveshaft and transmission as I was running with the LA 360 I had in before.

I recently swapped a magnum 360 in my 78 cordoba. I have the correct balancer and flexplate with 360 magnum weights and ordered a nuetral balance 727 converter. Since the swap I have been having engine vibration at cruising speed that is driving me crazy. After exhausting all options I learned...

Definately a thought of mine. I used a screwdriver to make sure it was still tight. Dropped the tank as I couldnt get the sender unit to seal properly in the car. Replaced the pump with a carter(third pump so far). No change. Then while the tank was out I blew into the fuel line to test my...

After driving all over town to find parts, I shove an air compressor in the fuel and return line by the pump and routed a hose on the other end into a glass bottle. Flow was great no debris or gunk came out. I replaced the fuel sender screen after cutting it open to add a spring in order to...

Well theres no sock anymore, and the return line end is full of filtwr material. This explains why a brand new fuel filter got clogged although im not quite convinced it is my fuel pressure issue. Im now on the hunt for a replacement screen.

Got it. If this isnt the entire issue its a huge part of it that needs to be fixed immediately. Made it a point to study the fuel pressure today. First start up when cold im getting 7 psi. After idling for 5 minutes it drops to 6.5.. then 6. If i give it light throttle i watch it sink down to 3...

I am having a surging while cruising that is more noticeable at higher rpms. Im doubtful that it is fuel related, but would like to cover all my bases. My service manual states 5-7 psi is required(im assuming at idle).

I have the stock fuel filter with 5/16 inlets and a 90 degree 1/4 return outlet. I was trying to find one with threaded inlets to reduce the amount of rubber hose and hoseclamp connections and have since put that on hold. What I am curious about now is the effect of running a 5/16 line into a...

So im now running factory 5/16 line to the pump, 5/16 into and out of the filter with the 1/4 return and using a holley regulator to adapt the line 5/16 fitting in to 3/8 fitting out connected to a 90 degree 3/8 edlebrock banjo fitting with a gauge. The only fittings i can find for an edelbrock...

If this problem wasn't inconsistent I would throw another torque converter at it and see what happens. Is there any way a balance issue can get worse as the car heats up? The problem is when I first start the car it idles good and then about 10 minutes of driving it starts to act up worse and...

Havent tried the light on every wire but I have replaced the brand new set of wires with some cut to fit ones because they were arching. Starts up quicker than a new car every time. Im running a brand new mechanical pump. I installed a regulator and gauge. Erratic fuel pressure so I bypassed the...

I doubt the engine has been balanced in the past as the balancer/pulley that came on it looked stock and not altered. Original cutout and holes, although I have no way to test this as I threw it away as soon as I pulled it off. I can test tdc again on this balancer but I also used a new...

A stock two piece I pulled off of a 96' 360 truck, as I am running v belts and all they sell new is the one piece with pulley now.

Yes ive tried removing the belts. The surge isnt as noticeable in park even while throttling up, but it is still there without the belts on. Ill take any ideas at this point, long shot or not.

If this is a balance issue which is the most likely scenario. What would be my next step here. I have all the correct ingredients. The torque converter is a nuetral balance that I had built by a reputable shop that was recommended to me by the owner of a transmission shop I know. The dampner is...

I believed so as well, but I have a nuetral balance converter with the flex plate that came with the motor and a factory magnum balancer. I have ran the engine with no belts and still the same issue. Also the issue isnt consistent. Sometimes it wont happen until the engine is warm sometimes you...

Still at it. Swapped the coil and ignition module to humor myself. Last time I tested the fuel pressure it was 7-8 psi and steady. Today i got a banjo fitting with pressure gauge outlet a holley pressure regulator (4.5-9 psi) with all the fittings to match. I was getting an extremely sporadic...

W Wire brush time. There is something about cleaning old parts that soothes my soul.

Unfortunately the saga continues. So I got a set of cut to fit wires and routed them in such a way that not a single wire touches any other. Not as pretty as the previous wires or routing but so be it. No change in the surging, so after some reading I found edlebrocks are finicky about fuel...

Nice setup. I would love to run the thermoquad I have but its going on a magnum 360 and I had two options for intakes either the edlebrock airgap or the knock off neither of which fit a spreadbore even with the adapter.

Hello everybody, I was hoping you guys could send me some pics or ideas on how to route my fuel lines from the pump to carb. I have a california car with a fuel filter that has a third outlet for fuel return. This is the only piece of the emissions crap I kept as ive been told it helps with...

So while trying to route the plug wires better I found this. First pic is the coil wire the second is the #7 plug wire. These wires are basically brand new. Could this be a result of spark jump or is it something else? Neither wires are rubbing on anything. I have tried to separate the wires...

Never would have thought of that. When i routed the plug wires i just tried to make them look nice and keep them off of hot components. I found the article with a lot of detail on how to route them in a factory dodge truck setup. Would I be right in assuming the main point is to keep space...

Well back to the drawing board. Swapped in the old distributor and while it didn't solve my issue, I now realize how poorly the vacuum pot on the aftermarket dist was functioning. Always cracks me up to see a 45 year old greasy part work better than the new shiny chinesium junk i try to replace...

Very true. Even if it doesnt fix the issue it will give me time to change the springs in the aftermarket one.

Electronic ignition. Same ignition module, coil, and ballast resistor i had working fine on the previous setup. The plugs and wires are new. I didnt use the distributor from the old setup i used an new aftermarket stock distributor ive had sitting around with new cap and rotor. I double...

Came out of a 2001 dodge 2500. Had fuel injection, serpentine belt, vertical intake bolts, no nylon cam gear, a timing case with no fuel pump hole, theres no rocker shaft like the la would have. I didnt check up the casting number but Its definately a magnum

I have, i was thinking the same thing. 360

Update: So I found an early style magnum balancer in decent shape and installed it but I am still having the same engine "throbbing" at idle and cruising. It is definatley more prevalent when the engine is warmed up. The engine always stays nice and cold. It is not a full rebuild I found a...