71.charger 383 with 727 tranny cooler

[wyrmrider]

It has...
Mopar or Rogue?
must be the Rogue I would not 0-40 on it till many hundreds of thousands of miles
stick with the 0w=20 in Canada unless HD use

 

[velrob]

no sorry i mean the charger

forget my rogue lol

what should i use in my charger with rollers ? 0w40 ok?

 

[wyrmrider]

you have a roller cam in your charger 0-40
flat tappet?...

 

[velrob]

yep thats right

Comp cams XE268H

 

[Slap Stick]

A stock 383 as in never rebuilt or rebuilt to stock clearances? Unless its super cold 0 wt oil is too thin. And with a roller cam 40 wt is overkill. The reason 0 wt oils are used today is due to tighter clearances. Thicker oil won't flow.
The roller LIFTERS (lifters better not be tapping) don't need the added zinc. In fact it may cause the lifters to slide rather than roll.

 

[velrob]

sorry yea its probably been rebuilt 2 times before me since i bought it the pistons were 0.30 over

its 0.60 over right now

crank has been machined

roller cam
flat tappet
roller rockers

what do you recommend?

 

[Slap Stick]

So you have flatties on a roller. Now you need the zinc.
Are the bearing clearances stock? If so 10-40 will work. A quality oil with high zinc content is called for.
On the SBC stroker dirt track engines we used to build they were broken in on Rotella with a zinc additive or Gibbs break in oil. After that they were fine on straight Rotella.
Unless we ran on alcohol. Gibbs oil didn't like the alk and we'd lose the bottom end. Happened every time we used Gibbs. Switched to Royal Purple and all was well. The alk didn't mix with the RP.

Good luck on your build!

Edit to add...
With transmission fluid, beware! Just a good synthetic is not good enough!
Use only ATF +4 or newer. The "universal" fluids will kill a Torque Flight.

 

[velrob]

Thx

The bearings are 0.20 under

Yep flat tappet cam
Hydraulic lifters

I was under assumption I had to add zinc to every oil change wherln using regular oil.

 

[Slap Stick]

The bearings are 020 under but what are the clearances? That determines the thickness of the oil. Wider clearances the thicker the oil.
Once the engine is broken in properly a good quality high zinc oil will do.
Earlier you said it had a roller cam. Now its flat LIFTER. Lifters don't tap. The tapping is done at the rocker/valve stem.
Our race engines ran all season on a build and spun 8k all night on a heavy, sticky half mile track that would take out a cheap bottom end.

 

[velrob]

Sorry I meant roller rockers not roller cam

The cam is flat tappet.

I can't remember what the clearances were when I checked it out. I didn't think i needed to record the bearing clearance but it as within the acceptable tolerance. That's all I remember haha