Can't get my engine to quit "pinging".

73pony · 2025-03-11T16:26:14-0400

In the interim on the tach. with the progression ignition you can mount your phone and it includes a full set of gauges. See photo.

AcesArneson · 2025-03-11T16:52:38-0400

csgt428 said:
No lifter bore bushings. Yes, it's a hydraulic roller cam. Possibly won't rev that high anyway..... However, In another engine they built, a 331 hyd roller stroker based on a 5.0 block I've had it to 7500-7700rpm with no missing.... in fact I think it went to 8000rpm once or twice while shifting it..... but that might have just been tach needle "inertia" since it was going up so quickly....

Lack of lifter bushings is likely why you are seeing oil in the cylinder. These were designed to run at 6000 rpm max, so if the builder went with the original spec on the lifter clearance you will be suffering from Cleveland Oil Derangement Syndrome. You will lose all oil pressure in the lifter galley by passing oil up onto the lifter galley deck through the lifter bores at high rpm. While this doesn’t really seem like a major problem the heads were designed to gravity drain into a nearly empty lifter galley deck but if your deck has an inch of oil on it your drainage from the heads back to the lifter galley will start to back up causing your heads to run at an extremely high engine oil level. Depending on the quality of your PCV valve you may pass this oil directly back into the intake manifold through the PCV line. Easiest way to check is to use a drop out oil catch-can inline between your PCV valve and your intake manifold. Check it out after warming up the engine and doing a few high rpm throttle runs. Shut er down and check out the catch-can, chances are you have been chasing your tail blaming the dizzy for oil carry-over. It’s a common Cleveland problem you can eliminate with lifter bushings.

Don C · 2025-03-11T17:21:45-0400

Aces is correct, most roller lifters are not compatible with 351C lifter bores. The base circle of the camshaft also enters into the equation.
This post by Dan Jones in the Clevelands Forever forum will help you:
https://www.tapatalk.com/groups/cle...ller-lifters-and-steel-distributo-t16728.html

boilermaster · 2025-03-11T18:27:23-0400

Hey you guys are pretty smart.
I put everything into my 408 stroker except the lifter bushings.
special cam bearings, high quality link bar lifters, restrictor pushrods, Wagner adjustable PCV
valve and a catch can.
the catch can gets perhaps 1/4 Teaspoon after a full day's worth of spirited driving, I rarely even check it any more.
my lifter bores were in pretty good condition, to me all of these things contributed some, especially the Wagner PCV valve and catch can.
would be an interesting experiment to put a parts store pcv back in there and see what happens at the catch can, naw.
oil in the oil pan is a wonderful thing.
Boilermaster

csgt428 · 2025-03-11T23:16:36-0400

AcesArneson said:
Lack of lifter bushings is likely why you are seeing oil in the cylinder. These were designed to run at 6000 rpm max, so if the builder went with the original spec on the lifter clearance you will be suffering from Cleveland Oil Derangement Syndrome. You will lose all oil pressure in the lifter galley by passing oil up onto the lifter galley deck through the lifter bores at high rpm. While this doesn’t really seem like a major problem the heads were designed to gravity drain into a nearly empty lifter galley deck but if your deck has an inch of oil on it your drainage from the heads back to the lifter galley will start to back up causing your heads to run at an extremely high engine oil level. Depending on the quality of your PCV valve you may pass this oil directly back into the intake manifold through the PCV line. Easiest way to check is to use a drop out oil catch-can inline between your PCV valve and your intake manifold. Check it out after warming up the engine and doing a few high rpm throttle runs. Shut er down and check out the catch-can, chances are you have been chasing your tail blaming the dizzy for oil carry-over. It’s a common Cleveland problem you can eliminate with lifter bushings.

Interesting. I asked my builder if he thought we should bush or at least check the lifter bores since I had heard about that problem. He said something to put me at ease..... did nothing....and Then put 2v gaskets on the intake and exhaust when he had his guys build it and Dyno it. Hah! Plus of course, rather low HP numbers on the Dyno test, which he Charged me for! I found out once I got the engine back and had to pull the intake to replace the gaskets...... Should have never had them build my 429scj for my 70 Torino Cobra after that..... they did the same thing, put regular N code 4v gaskets on the intake instead of SCJ gaskets. Then when he told me HP #'s and I questioned them he kept changing cams for me (3 diff and went to roller) but kept using the same gaskets! I told him and told him but he just didn't get it or check on his guys I guess..... Finally got it back with a POS roller MotherThumper in it and the little intake gaskets which I had to change out once again..... that cam's got to come out... I bought a slightly bigger than stock roller Comp Cam to put back in. Needless to say, the company went out of business....

Can't get my engine to quit "pinging".

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