Improved Racing's performance aluminum windage tray for LS family engines is a direct bolt-on replacement for the factory tray that clears up to a 4" stroke and works with both factory studs and ARP studs. This is a 3/4-length windage tray designed to clear shallow front oil pans such as the 4th Gen F-Body oil pan.
These windage trays are 100% bolt-on compatible with factory LS oil pans. No need to grind, modify, or add spacers to your windage tray. No more oil starvation issues due to misaligned pickup tubes. Just bolt this on and everything will line up like factory!
Improved Racing has designed this windage tray to maximize oil drainage while optimizing windage control. Made from aluminum, it weighs less than half as much as the steel factory tray for a weight savings of approximately 1.4 lbs, no modifications necessary.
Features and Benefits:
- Clears all factory and aftermarket rods and crankshafts up to a 4" stroke.
- Compatible with many common LS oil pans, no modifications required; see application list.
- Optimized to improve oil scavenging and windage control.
- Works with factory and ARP studs.
- More than 50% lighter than stock windage tray.
- Lifetime Warranty.
- Made in the USA.
Includes:
- 1x EGM-243 aluminum performance windage tray.
- 10x locking flange nuts for factory studs (for ARP studs, use nuts provided by ARP).
- 9x reducing bushings for use with factory studs.
- Installation instructions.
Fits engines with factory or aftermarket rods and crankshafts up to a 4.000” stroke. CAD-verified to fit Gen III & IV LS & Vortec family engines with the oil pans and/or connecting rods listed below. Does NOT fit shallow skirt blocks such as the Dart LS Next engine.
GM Oil Pan Part Numbers:
- 12628771
- 12598151
- 12558762
- 12631828
- 12605814
- 12598152
Holley Oil Pan Part Numbers:
Clears Connecting Rods:
- Callies Compstar H-beam.
- Callies Ultra I-beam.
- Eagle CRS6125BLW.
- Eagle CRS6100L3D.
- Eagle CRS6125O3D.
- Eagle CRS6125O3D2000.
- Eagle I-Beam Rods.
- GM LS Rods Except LS7 & LS9.
- K1 012AE25613.
- K1 012AE25613ST.
- K1 012AE25613L.
- K1 012AE25610.
- Lunati I-Beam Rods.
- Lunati H-Beam Rods.
- Manley H-Beam Rods.
- Manley I-Beam Rods.
- Oliver I-Beam Rods.
- Oliver H-Beam Rods.
- Scat I-Beam Rods.
- Scat H-Beam Rods.
- Texas Speed All Rods.
- Thompson Motorsports H-Beam Rods.
Improved Racing Lifetime Warranty
All products manufactured by Improved Racing are covered by a lifetime warranty. We guarantee our product for as long as the original purchaser owns it and we will repair or replace an Improved Racing product that fails, subject to the terms and conditions below.
The Warranty covers:
- Manufacturing and material defects.
- Product or material failure occurring when used according to the manufacturer's recommendations.
- Products unintentionally damaged in a collision or an engine failure.
- The Warranty applies to products manufactured by Improved Racing Products only.
The Warranty does NOT cover:
- Any damage due to improper installation, neglect, or abuse.
- Products which have been discontinued and for which no replacement is available.
- Products modified in any way.
- Products used for any purpose other than those expressly stated.
- Improved Racing does NOT and cannot provide a warranty for damages caused, in whole or in part, by the alleged failure of its products.
Warranty terms and conditions:
- The Warranty is valid for as long as the original purchaser owns the product (i.e. The Warranty is non-transferable).
- Proof of purchase may be required at Improved Racing's sole discretion.
- The Warranty is limited exclusively to the repair or replacement of the faulty product.
- Any and all other implied warranties of merchantability or fitness for a particular purpose are hereby disclaimed by Improved Racing.
- To file a claim, the product must be shipped back to Improved Racing at the customer's expense. In the case of product damage caused by a collision or engine failure, photographs of the product may be accepted in lieu of a product return at Improved Racing's sole discretion.
- If a warranty claim is approved, Improved Racing will cover return shipping costs of the repaired or replacement product. International shipping costs may not be covered.
To file a claim, visit www.improvedracing.com and use the Contact Form.
