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Another way to look at breaking in the engine. With a flat tappet cam, the cam break in is the most critical. Do it wrong, you're asking for trouble. Do it right, rings and everything else will be happy too. Cam manufacturers know cams. Every cam manufacturer will provide break in instructions for their product. If you already have your new cam, break in instructions are in the box with it. Best practice is to do what your cam's manufacturer suggests for their product.
Another way to look at breaking in the engine. With a flat tappet cam, the cam break in is the most critical. Do it wrong, you're asking for trouble. Do it right, rings and everything else will be happy too. Cam manufacturers know cams. Every cam manufacturer will provide break in instructions for their product. If you already have your new cam, break in instructions are in the box with it. Best practice is to do what your cam's manufacturer suggests for their product.
Yeah, for the cam itself, I will stick to the instructions and use the break in oil and all the rpm values they give.
I feel like if get through the cam break in without it comming out of the pan with the oil, I will be a good way on the road to a long lasting engine.
Just trying to get some input from people that might have done this before, as this is the first time I have done this.
I just broke in a rebuild with a used roller cam. I used Valvoline Racing 10W-30 for about 200 miles and changed to Pennzoil 10W-30. Don't know if this was a good idea or not. It's done. I will use the Pennz for at least the next two oil changes because that is what I have on the shelf. With 400 miles or so now, compression is even. Won't know about anything else for a while.
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