Engine oil change and filter

The LS7 (and LS9) has a "dry sump" oil system, like a racing engine.

It has a seperate tank for oil, which is pumped to engine. Dry sumps are used to prevent oil starvation on hard turns.

Honestly, I would have dealer do it, the remote tank must be drained, filter removed. If not done correctly you could risk oil starvation.

The LS7 and LS9 are very impressive engines, they would probably require a synthetic and capacity on the LS7 is 8 quarts. Check out the diagrams (Below). Please let us know what happens.

Lubrication system

It does have 2 plugs.

Here is procedure:

Engine Oil and Oil Filter Replacement
Removal Procedure
Open the hood.
Remove the oil fill cap.
Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
Fig. 272: Locating Both Oil Pan Drain Plugs
Courtesy of GENERAL MOTORS CORP.
Remove both oil pan drain plugs.
Drain the engine oil into an appropriate container.
Fig. 273: View Of Engine Oil Filter At Engine Block
Courtesy of GENERAL MOTORS CORP.
Remove the engine oil filter from the engine block.
Installation Procedure
Fig. 274: View Of Engine Oil Filter At Engine Block
Courtesy of GENERAL MOTORS CORP.
IMPORTANT:Before installing the new oil filter, ensure that the old oil filter gasket has been removed. If not, remove the old gasket.

NOTE:Refer to Fastener Notice.

Install the oil filter to the engine block.
Tighten: Tighten the engine oil filter to 30 N.M (22 lb ft).
Fig. 275: Locating Both Oil Pan Drain Plugs
Courtesy of GENERAL MOTORS CORP.
Install both oil pan drain plugs.
Tighten: Tighten the oil pan drain plugs to 25 N.M (18 lb ft).
Lower the vehicle.
IMPORTANT:DO NOT use any engine oil additives in Corvette engines.

Add 8 quarts of oil to the dry sump tank.
Check the oil level.
Install the oil fill cap.
Close the hood.
Reset the engine oil life monitor. Refer to GM Oil Life System Resetting.

Hi:
Changing the oil on this vehicle is straight forward. The only recommendation I can give you is this. Drain the oil until it stops coming out. At that point, lift the rear of the vehicle about 8 to 10 inches from the ground to drain any excess that is in the pan. The pan on the vehicle is flat and some oil can remain in it. As far as the rest of the oil change, it is straight forward. Make sure the o-ring gasket from the old filter doesn't stick to the engine block when you remove it. Place a thin film of oil on the o-ring on the new filter and make sure the filter and drain plug are clean and tight. Check for leaks when finished. If I recall, the 5.7L holds 6.5 quarts of oil. Start with 6, start the engine, and then recheck and fill if needed. Also, make sure to use the proper weight and type of oil. I know it requires synthetic oil and I believe it uses 5W30.

A NOTE: I always crack open the doors and trunk when lifting a corvette to avoid cracking any of the fiberglass.

I have 2 vettes a 77 & a 78 and I have never been able to put them on ramps, The spoilers hit the ramp before the tire does, You are gonna have to jack it up. Sorry

Yes you can change back to synthetic without hurting the engine. Synthetic oil gives better protection, that's why they want you to use it.