LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Oil pump for 383? What'd you use?

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Old Apr 27, 2004 | 02:38 PM
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Loadre's Avatar
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Oil pump for 383? What'd you use?

Just as the title said. Looking to see what I should run.
Old Apr 27, 2004 | 02:56 PM
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97; ANN. Z
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i used a high volume oil pump. but to be safe when using one i recommend a bigger oil pan, so you don't suck the pan dry. i order a mildon 7qt. pan from summitt

Last edited by 97; ANN. Z; Apr 27, 2004 at 03:05 PM.
Old Apr 27, 2004 | 03:02 PM
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Originally posted by 97; ANN. Z
i used a high volume fuel pump.
I'm assuming you meant oil instead of fuel? Where did you buy yours at?
Old Apr 27, 2004 | 03:04 PM
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97; ANN. Z
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yea my bad, i order mine through thunder racing. tell them what your doing to the car and theyll set you up with one
Old Apr 27, 2004 | 03:26 PM
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A stock unit oil pump from GM with the larger pickup will be your best bet. Forget high volume.

Make sure to get a oil pump drive shaft with a metal retainer, and not use the stock plastic one.

Stock pan will work fine, and might need some tappping depending you which crank brand you chose. No need for a bigger pan unless you are planning on extreme road racing .
Old Apr 27, 2004 | 03:34 PM
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Originally posted by 2MCHPSI
A stock unit oil pump from GM with the larger pickup will be your best bet. Forget high volume.

Make sure to get a oil pump drive shaft with a metal retainer, and not use the stock plastic one.
Where can I get a larger pickup and the drive shaft with the metal retainer?

Thanks
Old Apr 27, 2004 | 04:00 PM
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The GM dealer will have the larger diameter oil pump and pickup.. They used 2 different pickups on the 1993-95 cars and I think the large style pickup was the only one used standard in 1996-1997.

The oil pump driveshaft/metal retainer can be found at almost any aftermarket parts stores.
Old Apr 27, 2004 | 04:15 PM
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Stock pump - blueprinted; large pickup - tack welded; 80psi spring (engine rev's to 7,000+RPM); stock pan with a few hammer dings. A buddy of mine successfully ran over 1,100flywheelHP on an LT1 with the same setup.
Old Apr 27, 2004 | 04:26 PM
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From: Oklahoma where trees are made of wood.
I ran a stock replacement with the Z28 spring as well. Stock pick-up (97)
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