LS6 vs LS4 Oil Pump, whats the difference?
Thread Starter
Safety Car
Joined: Jul 2005
Posts: 4,275
Likes: 4
From: Vancouver WA
Originally Posted by dudleyd
LS4 is of the Gen IV blocks with 5.3L(325ci) displacment.
Not sure if pumps are interchangable between the Gen III and Gen IV blocks.
Not sure if pumps are interchangable between the Gen III and Gen IV blocks.
Race Director
Joined: Apr 2004
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From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
I would just stick with the LS6, I am certain that the only real difference is probably the title to go with the engine block, but the LS6 pumps flow really well.
Micah
Micah
Thread Starter
Safety Car
Joined: Jul 2005
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From: Vancouver WA
Originally Posted by mph1972
I would just stick with the LS6, I am certain that the only real difference is probably the title to go with the engine block, but the LS6 pumps flow really well.
Micah
Micah
I am wondering if the new LS4 is the new replacement for the LS6 pump? Or maybe it's the same pump, for less money.
I'm going to find out before I order a pump though. With the LS4 being the latest motor design from GM, maybe it has some better features.
Safety Car
Joined: Oct 2003
Posts: 3,643
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From: Limerick Pa
Hi All,
From what I understand one of the features is it produces 30% more volume. All of the engine builders have swapped over to using only LS4 oil pumps. We have been selling these for 3 or 4 weeks now and will not re-order the LS2 pumps once our stock is depleted.
Thanks,
Gene
From what I understand one of the features is it produces 30% more volume. All of the engine builders have swapped over to using only LS4 oil pumps. We have been selling these for 3 or 4 weeks now and will not re-order the LS2 pumps once our stock is depleted.
Thanks,
Gene
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by Gene@FredBeans
Hi All,
From what I understand one of the features is it produces 30% more volume. All of the engine builders have swapped over to using only LS4 oil pumps. We have been selling these for 3 or 4 weeks now and will not re-order the LS2 pumps once our stock is depleted.
Thanks,
Gene
From what I understand one of the features is it produces 30% more volume. All of the engine builders have swapped over to using only LS4 oil pumps. We have been selling these for 3 or 4 weeks now and will not re-order the LS2 pumps once our stock is depleted.
Thanks,
Gene
Team Owner
Joined: Jun 2001
Posts: 55,394
Likes: 1
Originally Posted by Gene@FredBeans
Hi All,
From what I understand one of the features is it produces 30% more volume. All of the engine builders have swapped over to using only LS4 oil pumps. We have been selling these for 3 or 4 weeks now and will not re-order the LS2 pumps once our stock is depleted.
Thanks,
Gene
From what I understand one of the features is it produces 30% more volume. All of the engine builders have swapped over to using only LS4 oil pumps. We have been selling these for 3 or 4 weeks now and will not re-order the LS2 pumps once our stock is depleted.
Thanks,
Gene
Whats 30% more? I'm more concerned with a pump not losing pressure in high heat track conditions on forged applications, such as the current LS1 Stock pump. Even when shimmed, teh LS1 Stock it doesnt hold pressure with the forged application in track condditions. I've seen it go down to the low teens.
If I'm going to spend the labor to install the pump, I need to make sure it will do the job
Team Owner
Joined: Jun 2001
Posts: 55,394
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I dont know what applications you guys are running but I track my car and the stock pump (with my foregd engine), which is also shimmed, just doesnt keep the pressure over a long track session.
Anyway, I called fred beans and they basically said its a "higher flowing pump" but no gurantees - with my issue anyway
What it ultimately comes down to sometimes is getting in touch with the engineers behind these things
Anyway, I called fred beans and they basically said its a "higher flowing pump" but no gurantees - with my issue anyway
What it ultimately comes down to sometimes is getting in touch with the engineers behind these things
Team Owner
Joined: Jun 2001
Posts: 55,394
Likes: 1
Originally Posted by RED99
It may not be the pump that is making you lose your pressure! It could be your engine clearances. The more clearances you have, the more pressure you will lose.
http://forums.corvetteforum.com/show....php?t=1387325
Thread Starter
Safety Car
Joined: Jul 2005
Posts: 4,275
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From: Vancouver WA
Originally Posted by molson
E-mailed Gene....$62.00
Would like more info on who is using these.
Would like more info on who is using these.
So order one with the pump.
