Oil Filter?!? What Gives
Le Mans Master
Joined: Dec 2002
Posts: 7,588
Likes: 6
From: Montreal Qc
I believe that is correct, something to do with the relief valve as I recall. Also the thread on is different so as not to install the wrong filter. I think many suspected it was a cost cutting measure by GM. 
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Safety Car
Joined: Jun 2004
Posts: 3,563
Likes: 2
From: Dallas Tx
oil filter cost cutting conspiracies?
Block changes were made to the 07 LS2 to match the LS7 style of oil pressure relief. That necessitated using the same filter as the LS7.
Exactly what costs do you think were cut by that?
07 LS3 and LS6, what do I think of that? I think I've never heard of such a thing. My 04 LS6's use a PF46.
So one model filter works on multiple engines
If you built engines, would you design a separate filter for every engine? I'd call that less than intellegent.
Block changes were made to the 07 LS2 to match the LS7 style of oil pressure relief. That necessitated using the same filter as the LS7.
Exactly what costs do you think were cut by that?
07 LS3 and LS6, what do I think of that? I think I've never heard of such a thing. My 04 LS6's use a PF46.
So one model filter works on multiple engines
If you built engines, would you design a separate filter for every engine? I'd call that less than intellegent.
Safety Car
Joined: Jul 2001
Posts: 4,456
Likes: 6
From: Spicewood, Texas, USA TX-Texas
oil filter cost cutting conspiracies?
Block changes were made to the 07 LS2 to match the LS7 style of oil pressure relief. That necessitated using the same filter as the LS7.
Exactly what costs do you think were cut by that?
07 LS3 and LS6, what do I think of that? I think I've never heard of such a thing. My 04 LS6's use a PF46.
So one model filter works on multiple engines If you built engines, would you design a separate filter for every engine? I'd call that less than intellegent.
Block changes were made to the 07 LS2 to match the LS7 style of oil pressure relief. That necessitated using the same filter as the LS7.
Exactly what costs do you think were cut by that?
07 LS3 and LS6, what do I think of that? I think I've never heard of such a thing. My 04 LS6's use a PF46.
So one model filter works on multiple engines
If you built engines, would you design a separate filter for every engine? I'd call that less than intellegent.
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
Melting Slicks
Joined: Dec 2007
Posts: 2,183
Likes: 0
From: "Freedom or Die..." South, FL
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