Vortec 4200-2800 4/5/6 Cyl. Main Oil Feed Supplemental Supply Kit

Product Info

Essential for the life of any Atlas engine, from mild to wild! Introducing the Atlas Industries complete Main Oil Feed Supply Kit. Give your engine's bearings the high oil flow they deserve! Made from high quality USA -8AN Teflon hose with a stainless and nylon braid, protected from exhaust heat by a fiber and silicone sleeve, along with USA and Taiwan made AN fittings you won't find anywhere else. 

The Vortec 4200 (and all Atlas engines) were designed to supply the valvetrain with oil direct out of the oil filter, with the front main and rod bearings tee'd off the same output. This was due to perceived (but unfounded) engineering concerns on GM's first ever VVT engines, which require high oil pressure and flow to move the cam phaser. However, due to complicated internal oil passages and the long length of the Atlas engines, what started out as good oil pressure to the number 1 main and rod bearings, drops off significantly as it works it's way through the oil galley to the back of the block. Because of this, the rear main and rod bearings see less oil, which is made worse if poor oil changes caused sludge to build up in the passages.

This kit "dual feeds" the oil passage that leads to the crankshaft bearings. By taking oil direct from the oil filter and supplying it at the rear bearings, oil flow is balanced and made a priority to the crankshaft and rods; the most essential part of the engine! This has no ill effects on the VVT system, and has been tested in dozens of vehicles to date.

This kit also has a built in 1/8" NPT tap in the last fitting to allow easy oiling for a turbo, pressure sensor, etc.

Reminder: Please select the correct kit for your engine size.