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Oil pickup tube O ring
I have seen conflicting opinions for the correct oil pickup tube O ring on the LS motor....I recently bought a conversion pan kit and the O ring is reddish in color and is pretty thick ( about .174") ...... I have read that Gm's updated O ring for this app. is a blue O ring #12557752 which is thinner (about .134").....not sure when this suggested update came in to play....makes sense that a fatter one would seal better but just checking in to see if anyone has heard anything on the situation..........thanks
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Noooo! Stay with the red one!
I had the blue one in my 99 sierra for ever, did a cam swap and upgraded to the red one, i have had fantastic oil pressure ever since!
Andy
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The blue one is for the f-body pickup tube, the red one is for the truck.
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ALSO, was just informed that the red one goes with the tube that has a recess for the O ring........thanks ......