Oil Leak at rear of 383

[Fran Blacker]

Think guys like these. http://www.superformanceproducts.com/

 

[Rockett]

Think guys like these. http://www.superformanceproducts.com/

Thanks! Yet another supplier to add to my bookmarks!

Superformance is listing an oil pan gasket under "Chrysler Big Block, 361-440 & Hemi. 1959-1978".

Is that what I want for the 383 in my '69 RR?

361 & 383 & 440 all used the same block? ... just with different borings?

 

[Fran Blacker]

yes B, RB and Hemi all the same.

 

[Rockett]

yes B, RB and Hemi all the same.

Thanks!
The RB was just a taller block, right?
My 383 is a B, correct?

 

[5.7 hemi]

Correct!

 

[Loulang]

Did you ever figure out what it was? I’m having the same problem with my 66 charger with a 383

 

[mrhemi]

Keep in mind that if this is a 383 Road Runner, it will have a windage tray as well, which means you will require two oil pan gaskets.

 

[Billccm]

So did you get the superperformance oil pan gasket? Thinking about trying it myself.

 

[Kern Dog]

Did you ever figure out what it was? I’m having the same problem with my 66 charger with a 383

Check out this thread......

Re-Rebuilding the 440-493 in a 1970 Charger

Start at post # 584 for content related to oil pan leaks and what solved it.

 

[1968rt]

If you use too long of a oil pan bolt that goes into the seal retainer, you will punch a hole through the retainer! The oil pan gasket will not completely cover the hole for the bolt and you will have a leak!

 

[Fran Blacker]

If you use too long of a oil pan bolt that goes into the seal retainer, you will punch a hole through the retainer! The oil pan gasket will not completely cover the hole for the bolt and you will have a leak!

View attachment 1387284

Those nubs can hit #5 main cap. Friend was the engine guy at a Plymouth dealer in late 60's. He did an engine and it leaked, never happened before. Pull the pan and looked around and saw the nubs hitting the cap. A little kiss on the grinder if in doubt.

 

[ksurfer2]

I have used fluorescent dyes to find leaks the engine, trans, and power steering a couple of times. Works great and shows you exactly where the leak is originating.

 

[beanhead]

If you use too long of a oil pan bolt that goes into the seal retainer, you will punch a hole through the retainer! The oil pan gasket will not completely cover the hole for the bolt and you will have a leak!

View attachment 1387284

I've always had to cut down those two oil pan bolts (or heaven forbid, buy shorter ones) to get them them to tighten properly.