Bonbo front-cover alignment tool used with LS-series engines to achieve precise centering.
Bonbo rear-cover alignment tool aligning the rear seal area on LS engines.
Bonbo oil-pan alignment tool guiding pan installation for LS builds.
Bonbo billet alignment tool construction highlights rugged, corrosion-resistant aluminum.
Bonbo alignment tool close-up showing tight tolerances for accurate fit.
Bonbo aluminum tool in workshop demonstrating durability for engine work.
Bonbo kit supports engine builders during LS-series seal replacement and alignment.
Bonbo LS compatibility guide helps confirm fit for multiple LS variants.
Bonbo kit in use during assembly demonstrates practical handling.
Bonbo front-cover alignment tool used with LS-series engines to achieve precise centering.
Bonbo rear-cover alignment tool aligning the rear seal area on LS engines.
Bonbo oil-pan alignment tool guiding pan installation for LS builds.
Bonbo billet alignment tool construction highlights rugged, corrosion-resistant aluminum.
Bonbo alignment tool close-up showing tight tolerances for accurate fit.
Bonbo aluminum tool in workshop demonstrating durability for engine work.
Bonbo kit supports engine builders during LS-series seal replacement and alignment.
Bonbo LS compatibility guide helps confirm fit for multiple LS variants.
Bonbo kit in use during assembly demonstrates practical handling.

Bonbo Front & Rear Cover Billet Alignment Tool & Oil Pan Alignment Tool for GM LS Engines (LS1–LS9)

Precision alignment for GM LS engine builds The Bonbo Front and Rear Cover Billet Alignment Tool &...
Vendor: Bonbo
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Bonbo front-cover alignment tool used with LS-series engines to achieve precise centering.

Bonbo Front & Rear Cover Billet Alignment Tool & Oil Pan Alignment Tool for GM LS Engines (LS1–LS9)

£55.54
Bonbo front-cover alignment tool used with LS-series engines to achieve precise centering.
Bonbo rear-cover alignment tool aligning the rear seal area on LS engines.
Bonbo oil-pan alignment tool guiding pan installation for LS builds.
Bonbo billet alignment tool construction highlights rugged, corrosion-resistant aluminum.
Bonbo alignment tool close-up showing tight tolerances for accurate fit.
Bonbo aluminum tool in workshop demonstrating durability for engine work.
Bonbo kit supports engine builders during LS-series seal replacement and alignment.
Bonbo LS compatibility guide helps confirm fit for multiple LS variants.
Bonbo kit in use during assembly demonstrates practical handling.

Bonbo Front & Rear Cover Billet Alignment Tool & Oil Pan Alignment Tool for GM LS Engines (LS1–LS9)

£55.54
Description
Description
x

Precision alignment for GM LS engine builds

The Bonbo Front and Rear Cover Billet Alignment Tool & Oil Pan Alignment Tool is engineered for meticulous LS-family work. Designed to help you center and square critical components, this kit supports clean seal seating and smoother reassembly during front/rear cover and oil pan work.

Core benefits at a glance

  • Accurate centering of front and rear covers to support proper seal seating.
  • Guides alignment by mimicking the balancer and oil pan, helping you position parts with confidence.
  • Critical for LS engines where the oil pan acts as a stressed member contributing to block rigidity.
  • Durable, corrosion-resistant aluminum construction with tight tolerances for reliable, long‑term use.
  • Especially useful for engine builders and professional mechanics performing seal replacements.

How it works in practice

Used in tandem with the front cover alignment tool, this kit helps align the covers with the oil pan so the front seal sits evenly. A centered setup reduces misalignment risk and supports consistent seal seating during installation.

Compatibility and use cases

Fits a broad range of GM LS series engines, including 4.8, 5.3, 5.7 and 6.0-liter variants, plus popular LS family members such as LS1, LS2, LS3, LS4, LS6, LS7, L99, LS9, LSA, LQ4, LQ9, L76, and L92. It’s designed to serve both rebuild projects and routine maintenance in shops and home garages.

Materials and durability

Constructed from high‑quality aluminum to resist corrosion and impact, the tool maintains tight tolerances for dependable alignment across multiple uses. This makes it a solid addition to any engine‑building toolkit.

Usage tips and warranty

Plan to combine this tool with standard front cover work and seal replacement procedures. Clean surfaces, inspect gaskets, and follow your engine build guidelines for best results. Bonbo offers a 30‑day satisfaction guarantee and responsive customer support for questions during use.

Why choose Bonbo

Beyond compatibility, the kit emphasizes practical alignment benefits that can support cleaner installations and more predictable outcomes in LS builds. Benefits described here are possibilities based on proper use and procedural care, not guarantees.

FAQ

Q: Is this tool compatible with GM LS engines?

A: Designed to fit a wide range of GM LS engines, including 4.8–6.0, LS1/LS2/LS3/LS6 and select variants listed in the details.

Q: What is the main benefit of using the alignment kit?

A: It helps center the front and rear covers and align the oil pan, supporting proper seal seating.

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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