Re: [FWDLK] RB 383 cam
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Re: [FWDLK] RB 383 cam

As far as the engine that started this thread, you know it needs a complete teardown to clean up all the metal particles. I'm sure you'll find at the least bearing damage throughout. 

The lifters that you speak of had a small cup for the pushrods to sit in up through '67. In '68 they switched to the larger pushrods without the tapered ends. On my 383B I switched over to a modern camshaft design and bought the appropriate pushrods to go with it. With the RB383 you should look for a 440 cam and lifters along with the pushrods.

Personally I'm a fan of Comp cams and they have a very thorough catalog you can request and get an idea on what cam profile you might like. As far as an engine rebuild kit, if you're not looking for NOS parts, Summit has some good prices on short block kits.


On Sunday, August 3, 2014 2:22 PM, Jim <0000093b5b69d73c-dmarc-request@xxxxxxxxxxxxx> wrote:


I've found two easy ways to get the ZDDP back in the oil. One is to buy the Redline Break-In Additive and use about 3 oz of it with each oil change.  The other, even easier, is to buy a can of STP, which has the right amount of ZDDP in it, when you buy the oil and filter and put the STP in along with the new oil.  The advantage of the Redline is that it's actually a little cheaper per dose and is easy to poor.  The STP is thick and hard to pour.  But the STP is available anywhere so it's pretty convenient.
  

From: Bill Parker <hemirr@xxxxxxxxx>
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Sent: Sunday, August 3, 2014 12:09 PM
Subject: Re: [FWDLK] RB 383 cam

Thanks for the input guys.  I agree about the oil.  I've driven the car a total of about 10 miles since buying it from another list member who also didn't drive it during his ownership I believe.  There is a receipt from a commercial garage showing a ring and bearing job, but the receipt has no date on it.  The inside of the engine is very clean and the oil isn't bad either so since that minor overhaul it must have been reasonably maintained, but of course with low ZDDP oil like we are all stuck with in the mainstream oils.  I'm thinking of using rotella once I'm back up and running since I don't have a converter to get clogged up with zinc.  

Bill & Kathi Parker, South Central Indiana, harboring of bunch of old and newer Mopars


On Sun, Aug 3, 2014 at 2:12 PM, Neil Vedder <esierraadj@xxxxxxxxxxx> wrote:
Oh, that must be absolutely true, because nobody in the old car
hobby knows about the effects of NOT having ZDDP in flat tappet
car engines.

And, of course, the ruined cam shafts render the car and its engine completely
unrepairable and worthless.

The car mechanics, in particular, hate the effects of having to work on these
damaged engines.

Neil Vedder



On 8/3/2014 12:05 AM, Dave Homstad wrote:
Bill,

You might give some thought as to WHY the cam has developed 3 bad lobes.
Here is a good article about how "OIL IS KILLING OUR CARS!!!!!".

Personnally, I think this is a plot by the EPA to get old cars off the roads quicker, by removing the ZDDP from our oils. 

Dave Homstad
56 Dodge D500


On Sat, Aug 2, 2014 at 6:43 PM, Bill Parker wrote:
 Hello all, I tore into the '60 Saratoga engine today, an RB 383, and as I suspected from the symptoms, it has a wiped camshaft.  One lobe is just a little nubbin', and two others are clearly half what they should be.  Seems like a simple cam swap is in order except of course for the small matter of early B/RB lifters and pushrods being different dimensions from the later ('66 and later?) stuff.  From a previous experience with putting a cam and lifter kit into a '65 engine, I think I recall that the late lifters are taller, and must use the late pushrods to compensate.  I could have it backwards, but in any case, I think the solution to using a late cam and lifter kit is using the late pushrods too.  I have several core 440 engines and I'm thinking, make a cam selection, buy the late style lifters with it, and use a set of the 440 pushrods (being that both my '60 383 and the 440's are RB engines with the same deck height).  Comments/cautions/suggestions?  This is not my hot rod and I plan to go with a pretty mild cam.
Bill & Kathi Parker, South Central Indiana, harboring of bunch of old and newer Mopars

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