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Old 10-08-2025, 09:07 AM
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steve25 steve25 is offline
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It certainly could only help assuming the all important mechanical details are right.

The price for this added feature is not prohibitive by a long shot which is amazing in today’s replacement auto parts world !

But it’s imperative that the lifter bores do not have ware such that it allows the lifter to wabble as it starts to rotate.

A lifer that does such will not rotate as much as it ultimately should normally and as such it will also concentrate the load on a much smaller lifter face to Lobe contact area then it should have.

At the factory Pontiac only very rarely had Cam break in issues even with the oil that was available back then, which is no where near as good as todays Pennzoil ultra of today for example.

Also factory production rods had oil holes on there sides that due also to a feed hole in the bearing unloaded a spray of oil right up onto the cam for every one time that a rod cycled up and down.

With modern aftermarket rods over filling the pan by 1.25 QTs is the next best thing to having that factory squirt hole when your breaking in your Cam.

In terms of our factory blocks and the average mileage that they have on them I just cant see why a big Cam company does not offer a .001” over size lifter .

Such you go a long way to having a successful new Cam break in on motors of over 80K miles that where not getting frequent enough oil changes.

A high load rated oil for example a 5w30 should be used for break in because good oil flow must be had even before oil temperature starts to come up to help it flow well down the side of a lifter and down onto the Cam lobe.

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Last edited by steve25; 10-08-2025 at 09:20 AM.
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