ls3 oil pumps
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Staging Lane
Joined: Jan 2011
Posts: 59
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ls3 oil pumps whats is the oil pump of choice for the ls3 engine? i would.'t mind getting a high volume melling pump, but ive been told by a few people that the melling pumps dont fit very well behind the timing cover and might require some clearancing of the pump or cover and id rather not have to go throught that.
Melling... High volume, high pressure..I believe they now have corrected that problem, but is no big deal, it just require some simple grinding, so as to clear the timing chain in one corner, bottom right.
I've read that the stock LS3 pump flows more oil ( due to the DOD ) and is cheap from GM. No clearancing required. You could even shim up the press relief just a bit for more press.
Ooop's I did not specify LS3 > L99 .... my bad
Ooop's I did not specify LS3 > L99 .... my bad
Last edited by davidws6; Feb 13, 2012 at 07:35 AM. Reason: .
I am using the LS4 oil pump. It's a high pressure pump OEM pump from GM. I know guys that use this pump it 1,000+rwhp cars. Hopefully, I can be another to add to the list.
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I believe you are wrong and the L99's oil pumps are the ones that have higher volume and pressure pumps.
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