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Old 11-25-2009, 11:53 AM   #18
adub4185
 
Drives: 2010 Black 2SS RS, 1995 BMW M3
Join Date: Oct 2009
Location: Dallas, TX
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Quote:
Originally Posted by amphi View Post
I thought the LS3 is casted from aluminum. What parts are made of Iron that would be picked up by the magnets if found in the oil?
hopefully someone else with a bit more knowledge of the materials used in the engine can elaborate, but a lot of the moving parts within the engine are steel/magnetic. yes, the block is aluminum, but these arent: steel sleeves, steel cranks, rods, rings, oil pump gears, timing chains, timing chain gears, valve seats and valve train. the magnets (in theory) should pick up a lot of the debris created from the constant movement of thse parts. ill be sure to take pictures and post them up when i change the oil again at 3000 miles, so consider me the guinea pig.
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