Wide Open Design's custom adapter makes plumbing an Oil Accumulator to LS based engines possible. Oil accumulators require -10 line. Until now there was not a good way to get the -10 line plumbed to the engine. The adapter fits directly above the oil filter on stock LS based oil pans. It has a, -10 o-ring seal instead of pipe thread for long service life. The adapter is also tapped 1/8" NPT on top so that oil pressure or oil temperature sender can be ran there. Our adapter reuses the factory gasket and bolts. Hose ends and adapter fittings are available also.