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Old 06-16-2018, 06:08 PM   #1
Brianw36
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New Cam New Oil?

With all this talk of adding new cams, should we be changing to a different oil? Normal street and stock is 5w30, track is suppose to be 0w40. New oil from Gm and Mobil 1 is a stock filled 0w40 for new Corvettes and if you look at the spec sheet looks like new camaro too. So now throw in a larger cam along with possible forged pistons and rods. Should we be changing to a different oil?
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Old 06-16-2018, 09:21 PM   #2
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Shouldn’t have any affect on oil selection.
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Old 06-17-2018, 01:32 AM   #3
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yes a cam makes a big difference in oil selection but not viscosity. You need a oil high in Zinc. like Amsoil ZRod 10w30 or Driven LS30 (5w30) Your motor is clearanced for 5w30. 10w30 still works.
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Old 06-17-2018, 07:26 AM   #4
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I am using Driven LS30 oil in my car since getting H/C. Its a good quality oil.
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Old 06-17-2018, 01:20 PM   #5
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New Mobil 1 0w40 oil is 900 phos and 990 zinc. It looks like a great new oil. Should be fine with new cam and lifters. And you can street or track use it.
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Old 06-22-2018, 11:36 AM   #6
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You dont need that much zinc unless you are changing from roller to flat tappet....
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Old 06-22-2018, 01:01 PM   #7
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better to have more than you need then not enough and regular full synthetic oils dont have enough.
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Old 06-22-2018, 04:57 PM   #8
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If you're changing out pistons and rods I would at the very least run a higher viscosity oil.
Factory clearances are generally tighter than what most shops can do.

And again since you're swapping pistons & rods I'm assuming you'll be racing it more frequently than GM intended. Your main bearings will see that punishment. So i'd also go with higher zinc.

I ran Zrod oil in my last built motor. Also on my LT1, since I religiously beat on it during weekends.
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