Re: {Chrysler 300} Cams
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Re: {Chrysler 300} Cams



As long as we’re on the subject of oil, and since I was one of the voices in favor of VR-1, a question hanging out there for me is oil weight preference.  Rip I’m not familiar with the Penn (Pennzoil?) but seeing some of the recommended weights make me wonder.  I use 10W-30 VR-1 in all the 361/383/413s.  I understand that a heavier weight oil can be problematic….?

Respectfully 
dave

Sent from my iPhone

On Feb 25, 2022, at 12:38 PM, 'CAROLL RIPLEY' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:


Richard:  I think your cam looks fine.  It is probably better than any new cam you can buy - especially since the lifters spin and there is no apparent wear.  Recently, there have been serious issues with some of the currently available cams - and especially the lifters.   

However, I would definitely upgrade to a high-zinc oil such as Penn Grade 20W-50.  That would help to ensure your cam and lifters will last for years to come. 

Rip

On Thursday, February 24, 2022, 09:39:16 PM EST, 'Richard Osborne' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:


Hello,

Since there has been a lot of discussion related to a cam for a different year, I am trying a new email thread and attempting pictures for the first time to the group.

I have the top end of my G engine apart. I had a bad exhaust leak and wanted to detail some things by taking the intakes were off. While apart, I wanted to look at the cam as I have never run zinc. The engine was assembled 20 years ago, using a Mopar Performance Cam P4452783 (6 pack specs which were close to the original cam specs). I degreed and retarded the cam per factory specs….

If the pictures come thru, the discoloration can be seen on some of the lobes. You cannot, however, feel any roughness or anything other than very smooth, even with finger nail. The lifters all still spin on the lobes also 

I am thinking since I am in this deep, I should replace the cam. Unfortunately, this cam has been discontinued and the replacement seems to be intergalactic backorder. I would consider a Comp Cams, but the specs are different. I’d like a lope to the engine, but when possible, I do drive this quite a bit around town and don’t have time to be changing plugs frequently, so I don’t want to go too large.

My question is for those who have a lot of experience with cams and rebuilds. What are your thoughts on these discolorations on the lobes and simply keeping this cam in the engine?

Best regards,

Richard Osborne
(Currently stuck in San Jose due to multiple cancelled flights….)


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