The 20-2003 camshaft position sensor plugs are wired differently than the later model 2004+ sensor and require a pigtail adapter to complete the swap. There are three application specific camshaft position sensors available for the 8.1L Vortec engine. Find CHEVROLET 5. If swapping to the 2004+ gear and sensor combination, you must also change your timing cover. The 2004+ timing cover was changed to accommodate the taller sensor design and does not work with 2001 or 2002-2003 camshaft position sensors. The timing cover has some extra material behind the pump.
It APPEARS that the magnum water pump shares the same mounting pattern as the la. I want to run a magnum serpentine belt system on my 360. The 2001-2003 engines use a different timing cover than the later model 2004+ engines. However, havent been able to find the information im looking for. The stock computer will run all three units without modification or tuning required. In the case of the latest model (2004+) timing sets, you will also need to purchase the new "tall sensor" timing cover and conversion harness. To swap sprockets or sensors, you must swap both the camshaft timing gear and camshaft position sensor. The camshaft position sensor on your engine will only work with the corresponding cam gear from the same year. 8.1L / 496cid Timing Set Swap Information Please note: We do not sell timing gears or camshaft position sensors. To “read” the new changes, the cam sensor also had to be updated to match both the newer 2002-20+ camshaft gear. The 2001 camshaft gear / sprocket and camshaft timing position sensor were revised in 2002 and again in 2004 to maximize the benefits of Magnetic Reluctance (MR) or “mirror image” ignition timing.
SBC TIMING COVER DIFFERENCES UPGRADE
It started life as a major upgrade from the 348/409 W motor. These parts do not interchange and must be replaced with the same year parts or the engine will not work properly. The big-block Chevy goes by many names the Rat, the Porcupine, and if you go back far enough, the semi-hemi. If there all sorts of stuff bolted to the water pump bosses that means you probably can't tell the cover is chrome anyway. If you can actually see the cover that means the water pump should be 4 bolt job. Over its lifetime, the SBC used 2 different Oil Pan Gaskets. The problem in is the aftermarket chrome timing cover. There are three camshaft gears and three camshaft sensors available for your engine. Your problem isn't an oil leak, the leak is the symptom.
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