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Had the same problem with leaking nss and changed several. I believe it was Pnora's same advice to get an oem nss and no leaking since. It's been over a year now. Thank You again Mr. Pnora.

I have that exact cam in a 383, not a 426. It's a vodoo 703. My best idle is at 900 rpm and I get 14 in. of vacuum. I have 16 degrees of advance with the distributor vacuum disconnected. 14 in. of vacuum is enough to run the p/b booster and a/c controls on my car. The cam has 4 degrees advance...

Thank You for your info on the part #s for oem switches. As I explained in post #8 and #19, #26. I did install a oem switch in May and I'm happy to report that I have experienced no seeping trans fluid from that switch. Aftermarket switches do have a seepage problem as some have reported. I have...

Well that clinches it! It's definitely a Mopar.

I think the biggest performance gain between magnum and non-magnum 383 occurred in the addition of the 10 3/4 torque converter in the a727. Only the hp 383 got this converter.

I believe there was 3 versions of the 383. You could choose a 383 with 2 bbl. carb and single exhaust. HP was 280 at its highest level.

windage tray and possibly the left exhaust manifold. Not sure about a dual point distributor. 383 magnum engine had a HP stamped on it.

Update: Installed that nos nss about a month ago, have about 100 miles on it now and no leaking. Of course, now I just jinxed myself by reporting this. Fingers crossed.

Just got mine today, will install during the week and will update later on. My failures have not always happened immediately, most take sometime before they show up. Enclosed a pic of the nss I received. the part # is stamped on the collar. Fingers crossed.

Mat, Yes I will get it as new old stock, it comes with a seal and the original box. One of the photos of the nss shows that the part# is stamped into the metal collar. I just ordered it yesterday and will receive it 6/8- 6/13 via usps. Keeping my fingers crossed that this is the answer to the...

Ordered a oem #2926495 on Ebay today. The switch is new, never installed however the small box it comes with shows its been around for a while. $45 for the switch, $16 more for s/h and tax. If this fixes the leaking problem it will be worth the cost. Ironically, the 1st time I went into the...

I agree completely with the mechanics observation. It will very, very slowly seep out even when the car hasn't been run. The switch is constantly submerged in trans fluid. Don't know what the answer is to this problem. There's only a couple of companies making this switch. Maybe only one and the...

I've had the same problem with leaking as you describe. I know it's not from some other location on the trans because I've actually watched the fluid slowly seep from between the plastic and metal bodies. I wrap some blue paper towel around the switch to keep the fluid from migrating around the...

I got 12.5 inches from nearest point on cowl to the center of filter on a 383 engine with stock manifold. Hope this helps you.

Can anyone recommend a neutral safety switch that doesn't leak past the white plastic body and comes with a black rubberized metal seal? I've gone thru several in the past 3+ years and it's always the same leak. I'm considering an Echlin because it states that it's made in the US to the same...

It's been a while since you posted this, just wondering if you followed thru with the Hughes tc and how it worked out.

the engine is a 383 magnum and have the hp exhaust manifolds, original intake with carter 625cfm performance series carb. and 27" tires.

I put the lunati voodoo 703 into my 383 about 1 1/2 years ago. I have power brakes. I had to set idle speed to 950-1000 to get 14 in. vac. The brakes work well with that and the idle sounds good. I have all original parts so I haven't experienced the full power potential of this cam. Hope this...

Kern, You are using a lunati cam that you used previously and now advancing it 4* as you did earlier. I'm assuming that the cam did not come with any advance built into it. I'm asking only for my own information because my lunati cam came with 4* built in and I also had to check for a 106*...

Hey Furyus, I know the feeling. I've done this only one time, but the good news is that my engine has 2K miles on it and all seems well. If you visit Lunati Cams, they have a pretty good write up and that's what I used to degree my new cam. What they say in the instructions is to use a...