Flat tappet 350

Pennzoil motor oil
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NHRATA

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I recently just broke in a brand new 350 crate engine for my 77 C10. The engine has a flat tappet cam, I'm hoping to switch over to a full synthetic at 3,000 miles. Currently running Valvoline 10 W 30 VR1. Is there anything out there with high zddp in a full synthetic.
 
Hoping to stick with a 10w30. How is the Rotella 10w30? Is it a full synthetic and what is the zddp level, does anybody know
 
Valvoline vr1 10w30 full synthetic is available, and also the redline high performance oils have a good amount of zddp for flat tappet cams, they have the redline in 10w30 but I like 10w40 in my chevy small blocks.
 
I have a crate 350 in my 89 Sierra with about 20k on it now and ran VR1 or Rotella T5 both 10w30. Now I run Valvoline Advanced 5w30 due to more -30 mornings. If you don't need the 5w and want synthetic then run the VR1.

I'm convinced that a stock flat tappet doesn't need more ZDDP but I get it and why I chose Advanced at the time because it had more ZDDP than most SN oils had at the time. Now Valvoline has increase the zinc and phos in SP which I believe is a good thing.

Advanced
https://sharena21.springcm.com/Publ...2d889bd3/3aa410a1-0bbd-e711-9c12-ac162d889bd1

VR1 synthetic
https://sharena21.springcm.com/Publ...2d889bd3/8213a6c1-0cbd-e711-9c12-ac162d889bd1
 
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If you really want synthetic then synthetic VR1 then. I run the regular VR1 in my beetle it does excellent. The synthetic is a lot harder to find. The regular VR1 is just fine though.
 
NHRATA said:
I recently just broke in a brand new 350 crate engine for my 77 C10. The engine has a flat tappet cam, I'm hoping to switch over to a full synthetic at 3,000 miles. Currently running Valvoline 10 W 30 VR1. Is there anything out there with high zddp in a full synthetic.
Click to expand...
All those Ford 2 litre 4 bangers and Toyota camrys and Nissan have flat tappet cams - though they are OHC which is just as bad

due to high speed due to much Larger radius and all the lift is on the cam.

So a good modern oil like Valvoline Advanced should be fine. Plus it will free up more power.

So Whats the engine? Whats the Cam card ? I wold think any decent crate motor would have a roller cam
and Vortec Heads. Is this a LoPo targetmaster ?


Note: My ford/mazda 2 liter 4 banger in my Indian built Ford Ecosport likely is built more than your crate motor
and it too has solid cams.
Its pretty much a Full race smog motor High compression high horsepower. If it was a 350V8 it would be 475 HP net.

- Ken
 
If you have mild valve spring pressure, 10-30 oils should be fine.
Beyond that, there are ZDDP additives if you wanna play chemist, or you can buy one of the speciality oils.

If I ever pull apart one of my classic's engines, I will stab a hydrolic (spelling?) roller and be done with it.
Of course, their engines are original to the cars, so that's that.

Good luck.
 
I would assume that you are running a carb. Can I ask why synthetic? In carburetor vehicles I just prefer to run conventional because I end changing the oil annually and I don’t have a whole lot of miles on it. Fuel dilution is more of my concern so I just stuck with conventional and change it out annually.

I am a huge fan of Valvoline VR1, my big block impala loves it compared to penn grade. I really couldn’t recommend anything else
 
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