I have a 383 with a flat tappet cam I heard you need to run oil with zinc in it would redline oil be ok I do not want my cam to go flat does anybody know what oil to use thanks

 

Yes!

 

What oil would you get redline or Brad Penn?

 

Either is fine!

 

Have heard and seen ads for the Brad Penn oil. Who are they and what is so unique to their oil. I'm just about ready to "give birth" to my 455 and concerned about oils. Thanks,

 

I just rebuilt with a Melling stock camshaft. The instructions with the cam recommended Shell Rotella, among others. Says modern oils are formulated for roller lifters and do not contain enough anti-wear additive. Some thing I did not realize. Maybe I should be using it in all my old engines. I do use it in my diesels.

 

Running Brad Penn break in oil in a mild cammed 303 bottom end with 324 heads, carb etc.

 

myself and danny use valvoline vr-1 that you can get from NAPA. it has the zinc added already as well

 

After some research I went with Mobil Delvac 1300 15w-40. From what I've read, lots of the other brands lowered their zddp, ie Shell Rotella T.

 

I've been told to use Shell Rotella 15w40 (conventional or synthetic.) It is high enough in zinc and has a lot of detergents in it. It's a high quality diesel oil and can be used in a car without a catalytic converter.

I like that it's not too expensive (Lucas oil and race oils here are super pricey), easy to find, and even our most famous retailer here (Canadian Tire) re-badges the fleet version of the stuff and sells it cheap, though it has fewer detergents, supposedly.

 

Alot guys I know run Brad Penn they say the companys has been around for 30years and there oil has more zinc in it for flat tappet cams. alot of oils are starting to put less zinc in there oils. newer cars really don't need zinc zzdp

 

i heard the zinc plugs the cat converters

 

I use valvoline VR1 racing oil in my 70 cutlass with a built 455.

 

I heard the same thing about the zinc plugging up the cats but my car is a 70 I got no cats so I'm good.the Brad Penn oil is ment for older cars

 

And this concerns you because...?

- Eric

 

Exactly. I run 10-40 Royal Purple in mine. Expensive - Yes. I got it this year from Advance Auto for 1/2 off on a sale. I also still add a (little) zinc additive to it just because.

 

Run any oil you want and just add the additive.

Rick

 

Isn't that a chubby engine?
If so, that's too bad.

Gene

 

Do u mean Chevy engine? why is that to bad when I bought is car it already had a chevy 350 in it but when I put 383 in with the. Trick flow heads man those heads are bang for the Buck heads.I felt the horse power difference