The GM LS family small blocks are prone to oil starvation at high Gs, especially at higher RPMs where oil aeration and windage is more prevalent. Proper oil pan baffling is critical for improving oil control and reducing oil starvation in these engines.
This pan is the 2004 LS1 pan, which does not feature the oil pressure relief valve found in the LS2 pan. The LS2 pan is only required for engines that use Displacement on Demand (DOD)/Active Fuel Management (AFM) or Variable Valve Timing (VVT).
Package includes Improved Racing's trap door racing oil pan baffle. Save by purchasing the two together!
The complete swap kit includes everything you need to swap to this oil pan: the oil pan, Improved Racing baffle and windage tray.
Improved Racing's baffles provide very effective, track-proven protection against oil starvation for road racing, drifting, autocross, drag racing and even off-roading and rock crawling. The baffle uses trap doors to keep oil around the pickup tube and provides vastly improved oil control over the stock baffle. This baffle is sufficient to prevent oil pressure drops at up to 1.4 sustained lateral G's in most vehicles.
Features and Benefits:
- Track-proven to prevent oil starvation at up to 1.4 sustained lateral G's in most vehicles
- Directional trap door baffling completely encloses the oil pump pickup for maximum protection against oil starvation at high Gs
- Baffle plate with drain-back guides and drain-back slots help accelerate return of oil to the bottom of the sump while also preventing oil slosh and reducing oil consumption
- Reduces the risk of oil starvation when oil levels are low
- High-quality factory cast aluminum oil pan, which is considered a structural part of the engine block and is less prone to failure or leaking than aftermarket sheet metal pans
- Light-weight aluminum baffle sheds 1.3lbs over the factory oil pan
- 12 month warranty on oil pan baffle only
- Oil pan baffle made in the USA
Test Data:
The graph attached in the images plots oil pressures with the factory baffling (in red) versus the Improved Racing EGM-204 baffle (in black). A complete chart with oil pressure, RPM and lateral G-force plots can be seen in PDF format by clicking here, or as a JPG image by clicking here. A second chart that adds several additional logged parameters can be seen by clicking here.
Includes:
- Improved Racing GTO racing oil pan baffle, part # EGM-204 (old part number EGM-1004)
- GM Part # 12581209 - GM LS1 GTO oil pan, gasket, and mounting hardware
Complete swap kit also includes:
- GM Part # 92067147 - GM LS1/LS2 GTO oil dip stick
- GM Part # 92066941 - GM LS1/LS2 GTO oil dip stick tube
- GM Part # 12572654 - GM LS1/LS2 GTO oil pickup tube
- GM Part # 12558189 - GM LS1/LS2 GTO windage tray
Applications:
- 2004-2006 Pontiac GTO
- 2001-2005 Holden Monaro (V2 VC8 & VZ)
- 1999-2006 Holden Commodore (VT, VX, VY & VZ)
- 1999-2006 Holden Commodore Ute
- 1999-2006 Holden Statesman (WH, WK, WL)
- 1999-2006 Holden Caprice (WH, WK, WL)
- 2001-2006 Vauxhall Monaro
- Other vehicles equipped with the GM front-sump oil pan part number 12599397, 12599398, 12581209, or 12581210.
- Bolts to all GM Gen III & IV LS family engines including LS1, LS6, LS2, LS3, LS7, LS9, L76, L98, L92, L93, L99, LQ4, LQ9, LSA, LSX and V8 Vortec variations
SKU | N78376447 |
Barcode # | Does not apply |
Brand | Improved Racing |
Shipping Weight | 6.9000kg |
Unit Of Measure | ea |
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