Nope. These LT motors use RTV from the factory. You can buy aftermarket options that use gaskets, though. Those usually have provisions for other things when you are doing a cam, though. If you are keeping it stock and just replacing the oil pump, I'd just reuse the stock cover with GM RTV.
Here are some photos of my rear cover with the RTV applied.
https://www.camaro6.com/forums/showp...&postcount=109
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2017 ZL1 M6 Black | Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // BMR MM // BC Forged KL13
Mods being installed-
oil pump, cam, ported heads, dual in-tank, Goliath and XDI, corn, etc., etc.