Improved Racing Gen III & IV LS bypass cover with no sensor ports for versatile installs.
Improved Racing gasketed bypass cover supports a leak-free seal.
Gen III/IV LS oil pan compatibility for ports above the filter.
Class 10.9 screws included for secure mounting on LS bypass cover.
Improved Racing Gen III & IV LS bypass cover with no sensor ports for versatile installs.
Improved Racing gasketed bypass cover supports a leak-free seal.
Gen III/IV LS oil pan compatibility for ports above the filter.
Class 10.9 screws included for secure mounting on LS bypass cover.

Improved Racing Gen III & IV LS Oil Cooler Bypass Cover — No Sensor Ports

Overview Designed by Improved Racing for GM Gen III and Gen IV LS engines that do not...
Vendor: Improved Racing
Availability: In stock
£36.55
£36.55
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Improved Racing Gen III & IV LS bypass cover with no sensor ports for versatile installs.

Improved Racing Gen III & IV LS Oil Cooler Bypass Cover — No Sensor Ports

£36.55
Improved Racing Gen III & IV LS bypass cover with no sensor ports for versatile installs.
Improved Racing gasketed bypass cover supports a leak-free seal.
Gen III/IV LS oil pan compatibility for ports above the filter.
Class 10.9 screws included for secure mounting on LS bypass cover.

Improved Racing Gen III & IV LS Oil Cooler Bypass Cover — No Sensor Ports

£36.55
Description
Description
x

Overview

Designed by Improved Racing for GM Gen III and Gen IV LS engines that do not run an oil cooler, this oil cooler bypass cover closes the factory ports with a strong, lightweight aluminum body. The no-sensor-ports design helps keep the installation clean and straightforward, while maintaining a compact, race-ready profile.

The Gen III & IV bypass cover is optimized to support efficient oil routing even when an external cooler is not fitted. It replaces the factory cover with a part that emphasizes flow and seal reliability, so you can focus on your drive with confidence that the bypass path remains well managed under varied driving conditions.

Key benefits

  • No sensor ports: streamlined design reduces potential leak paths and simplifies installation.
  • Large ported internal cavity: engineered for improved flow relative to OE diecast bypass covers, supporting smoother oil movement through the bypass path.
  • Broad compatibility: fits most GM Gen III and Gen IV LS-series small block oil pans with ports located above the oil filter.
  • Leak-proof hardware: aluminum bonded high-temperature FKM gasket plus class 10.9 mounting screws for a secure seal and solid mounting performance.

Fitment and hardware details

This cover is designed to work with GM Gen III and Gen IV LS engines that feature oil cooler ports above the filter, offering a straightforward swap for vehicles without an oil cooler. The included gasket and sturdy screws are selected to support a reliable seal and durable installation in varying operating environments.

  • Fits most GM Gen III & IV LS-series small block oil pans with above-filter ports.
  • Includes aluminum bonded high-temp FKM gasket for leak resistance and class 10.9 mounting screws for strong, repeatable fastening.

Real-world use and installation notes

Whether you’re restoring a classic LS build, pursuing a lightweight setup, or optimizing an engine that runs without an external cooler, this bypass cover offers a practical solution. It emphasizes reliable sealing and thoughtful, flow-conscious design without promising any specific performance outcomes. For best results, follow standard torque procedures and inspect the gasket seating during installation.

What’s included

  • Oil cooler bypass cover body
  • Aluminum bonded high-temperature FKM gasket
  • Class 10.9 mounting screws

FAQ

Q: What GM engines is this bypass cover compatible with?

A: Fits most GM Gen III and Gen IV LS-series small block oil pans with ports located above the oil filter.

Q: What benefits does this bypass cover offer compared to the stock part?

A: A larger ported cavity can improve flow; it includes a high-temp gasket and strong mounting screws for a reliable seal.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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