Looking for the best GM LS1, LQ4, or LQ9 parts to upgrade your engine? We’ve curated a list of 10 top-tested components, from oil diverters to gasket kits, to help you boost your engine’s performance and durability with ease.
Upgrading your GM LS1, LQ4, or LQ9 engine? Finding premium parts that deliver durability and performance can feel overwhelming. This guide cuts through the noise, spotlighting top-tested components designed for LS engine upgrades.
Each LS1, LQ4, LQ9 part here is built to last. From oil diverters to gasket kits, we’ve vetted options that ensure precise fit and smooth operation. Ready to boost your engine’s potential? Keep reading—your perfect match awaits.
List of Top 10 GM LS1 LQ4 LQ9 Parts
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OywhC LS Billet Rear Galley Plug Barbell Oil Diverter fits for GM Gen III & IV LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L33 L99 Oil Diverter LS Barbell 6061-T6 Aluminum Alloy Material |
This product is perfect for GM LS engine owners needing a durable, high-performance replacement for worn plastic oil diverter plugs. It suits LS1, LS3, LS2, LQ4, LQ9, LS6, L92, L33, L99, LSA, LM4, and LSX Series engines with 6061-T6 aluminum strength and triple FKM O-rings for better sealing, oil flow, and long-term reliability. |
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AUTOBABA GEN 3 III LS Gasket Set Kit & LS Head Gaskets Compatible with 1999-2010 GM Chevy Silverado GMC Sierra 1500 2500 Engine LS1 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L Replace# 12558178 12551933 12611384 |
This gasket set is perfect for owners of 1999-2010 GM Chevy Silverado and GMC Sierra trucks with 4.8L, 5.3L, 5.7L, or 6.0L engines. It’s ideal for those needing a reliable replacement to seal oil, coolant, and gas while ensuring durability under high pressure and temperature. |
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Michigan Motorsports Camshaft Thrust Retainer Plate Kit | Fits Non-VVT LS Engines | 4.8L 5.3L 6.0L 6.2L LS1 LQ4 LQ9 LS2 LS3 | Replaces GM #12589016 | Includes ARP 134-1002 Bolt Kit |
This kit is perfect for LS engine builders who want a strong, easy-to-install upgrade. It fits many non-VVT LS engines like 4.8L, 5.3L, and 6.2L and is great for street, strip, or racing use. If you want a reliable, heavy-duty plate that stops bolts from stripping, this kit is made for you. |
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Michigan Motorsports Delphi LS7 Lifter Set with Guide Trays | Fits GM LS Engines 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 LQ4 LQ9 LY5 LY6 LM7 | Delphi Part #’s 12499225 & 25341990 |
This product is perfect for car enthusiasts and mechanics upgrading or rebuilding GM LS engines. It offers OEM-quality lifters and guide trays for reliable performance in LS1, LS2, LS3, LS6, LQ4, LQ9, LY5, LY6, LM7, and other LS-based engines. |
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Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance |
These Michigan Motorsports LS1 Rocker Arms are perfect for GM LS engine owners looking to boost performance and durability. If you’re upgrading your engine for street, strip, or track use, these pre-assembled rocker arms with upgraded trunnions offer enhanced stability and improved high-RPM operation. |
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CHENACC LS Harmonic Balancer Bolt GM Performance Parts 12557840 for Gen.3/Gen.4 LS LS1 LS2 LS3 LS6 L59 L92 L96 L99 LC9 LH8 LMF LMG LY5 LM7 LR4 LMG LQ4 LQ9 4.8L 5.3L 5.7L 6.0L 6.2L Engines |
This product is perfect for GM engine owners and mechanics needing a durable, corrosion-resistant replacement for Gen.3/Gen.4 LS engines. It fits LS1, LS2, LS3, LS6, and others from 4.8L to 6.2L, offering Grade 10.9 strength and easy installation. |
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Aluminum Oil Diverter ls Barbell fits for GM Gen III & IV Engines LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 4.8L 5.3L 5.7L 6.0L 6.2L |
This premium aluminum oil diverter barbell is a must-have upgrade for anyone with a GM Gen III & IV engine, including popular models like the LS1, LS3, and 5.3L. If you’re looking to boost your engine’s oil flow and pressure, this is the perfect part for you! |
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KAKUPPA LS Engine Oil Galley Plug Barbell, Aluminum Oil Diverter Plug Compatible with GM Gen III IV LS1 LS2 LS3 LQ4 LQ9, Performance Engine Parts for 4.8L 5.3L 6.0L 6.2L LS Engines |
This LS Engine Oil Galley Plug Barbell is perfect for car enthusiasts and mechanics who want to upgrade their GM LS engines. It’s ideal for those seeking better performance and longer-lasting parts. |
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Knock Sensor Relocation Brackets and 36 Inches Extension Wire Harness for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 |
This product is perfect for GM Gen III LS V8 engine owners who want to relocate their knock sensors easily. If you need a durable, high-quality bracket and wire harness for your 1997-2007 LS engine, this is the best choice. |
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Michigan Motorsports LS Oil Pan Gasket – Compatible with 4.8L 5.3L 5.7L 6.0L 6.2L LS Engines – Replaces GM 12612350 – Fits LS1 LS2 LQ4 LQ9 LS3 L92 L94 L76 L77 LY6 L96 |
This Michigan Motorsports LS Oil Pan Gasket is perfect for LS engine owners who are doing engine rebuilds or fixing oil leaks. It’s a direct replacement for GM part 12612350, ensuring a great fit for your 4.8L to 6.2L LS engine. |
Detailed Reviews
Discover the best GM LS1, LQ4, and LQ9 parts chosen from expert reviews and real user feedback. This guide offers clear, trusted insights to help you pick the perfect parts for your engine. Dive in to find top-quality, reliable upgrades that keep your ride running strong.
1. OywhC LS Billet Rear Galley Plug Barbell Oil Diverter fits for GM Gen III & IV LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L33 L99 Oil Diverter LS Barbell 6061-T6 Aluminum Alloy Material
This LS Billet Rear Galley Plug Barbell Oil Diverter fits GM Gen III and IV engines. It’s made from 6061-T6 aluminum alloy for strong, lasting use.
Replaces worn plastic OEM barbell plugs (OEM 12573460). Triple FKM fluororubber O-rings boost sealing and stop oil leaks. Upgrading to aluminum cuts engine failure risks and maintenance costs.
Aluminum parts can be reused by swapping new O-rings. Works with LS1, LS3, LS2, LQ4, L33, LQ9, LS6, L92, L76, L99, LSA, LM4, and LSX engines. Improved oil flow keeps engines running smooth and efficient long-term.
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Perfect For:
This product is perfect for GM LS engine owners needing a durable, high-performance replacement for worn plastic oil diverter plugs. It suits LS1, LS3, LS2, LQ4, LQ9, LS6, L92, L33, L99, LSA, LM4, and LSX Series engines with 6061-T6 aluminum strength and triple FKM O-rings for better sealing, oil flow, and long-term reliability.
Ready to Purchase?
2. AUTOBABA GEN 3 III LS Gasket Set Kit & LS Head Gaskets Compatible with 1999-2010 GM Chevy Silverado GMC Sierra 1500 2500 Engine LS1 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L Replace# 12558178 12551933 12611384
The AUTOBABA GEN 3 III LS Gasket Set Kit is perfect for GM Chevy Silverado and GMC Sierra engines. It works with 1999-2010 models and fits 4.8L, 5.3L, 5.7L, and 6.0L engines.
This kit seals oil, coolant, and gas in the cylinder. It handles heat well and lasts long under high pressure and temperature.
The set is made to OEM specs for a perfect fit. It reduces leaks and boosts engine performance. Questions? Contact us anytime!
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Perfect For:
This gasket set is perfect for owners of 1999-2010 GM Chevy Silverado and GMC Sierra trucks with 4.8L, 5.3L, 5.7L, or 6.0L engines. It’s ideal for those needing a reliable replacement to seal oil, coolant, and gas while ensuring durability under high pressure and temperature.
Ready to Purchase?
3. Michigan Motorsports Camshaft Thrust Retainer Plate Kit | Fits Non-VVT LS Engines | 4.8L 5.3L 6.0L 6.2L LS1 LQ4 LQ9 LS2 LS3 | Replaces GM #12589016 | Includes ARP 134-1002 Bolt Kit
Upgrade your LS engine with the Michigan Motorsports Camshaft Thrust Retainer Plate Kit. It fits non-VVT LS engines like 4.8L, 5.3L, and 6.2L. Installation is easy with a perfect OEM-fit replacement for GM #12589016.
This kit features a heavy-duty flat-style plate that stops stripped or seized bolts. It comes with ARP flat-head bolts that hold tight even at high RPMs.
Trusted by pros, it works great for street and race engines. Make sure your engine is non-VVT before choosing this kit for the best results.
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Perfect For:
This kit is perfect for LS engine builders who want a strong, easy-to-install upgrade. It fits many non-VVT LS engines like 4.8L, 5.3L, and 6.2L and is great for street, strip, or racing use. If you want a reliable, heavy-duty plate that stops bolts from stripping, this kit is made for you.
Ready to Purchase?
4. Michigan Motorsports Delphi LS7 Lifter Set with Guide Trays | Fits GM LS Engines 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 LQ4 LQ9 LY5 LY6 LM7 | Delphi Part #’s 12499225 & 25341990
The Michigan Motorsports Delphi LS7 Lifter Set is a high-quality replacement for GM LS engines. It includes 16 hydraulic roller lifters and 4 guide trays for a complete overhaul. These parts are designed to fit LS1, LS2, LS3, and other LS-based engines perfectly.
It is a direct replacement for GM part numbers 12499225 and 25341990. The set is made for easy installation. You’ll get OEM quality for reliable performance.
Perfect for camshaft upgrades, these lifters offer great power and torque. They work well in naturally aspirated, turbocharged, or supercharged engines. This set is ideal for any LS engine rebuild or valvetrain upgrade.
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Perfect For:
This product is perfect for car enthusiasts and mechanics upgrading or rebuilding GM LS engines. It offers OEM-quality lifters and guide trays for reliable performance in LS1, LS2, LS3, LS6, LQ4, LQ9, LY5, LY6, LM7, and other LS-based engines.
Ready to Purchase?
5. Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Unleash the power of your GM LS engine with Michigan Motorsports LS1 Rocker Arms. These pre-assembled units come with upgraded trunnions for enhanced durability. They are ready to install and boost your engine’s performance.
Experience superior valvetrain stability. The upgraded trunnion bearings offer greater strength and reduce failure risk.
These rocker arms are a direct fit for a wide range of GM LS engines. Upgrade your engine for improved high-RPM performance and long-term durability.
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Perfect For:
These Michigan Motorsports LS1 Rocker Arms are perfect for GM LS engine owners looking to boost performance and durability. If you’re upgrading your engine for street, strip, or track use, these pre-assembled rocker arms with upgraded trunnions offer enhanced stability and improved high-RPM operation.
Ready to Purchase?
6. CHENACC LS Harmonic Balancer Bolt GM Performance Parts 12557840 for Gen.3/Gen.4 LS LS1 LS2 LS3 LS6 L59 L92 L96 L99 LC9 LH8 LMF LMG LY5 LM7 LR4 LMG LQ4 LQ9 4.8L 5.3L 5.7L 6.0L 6.2L Engines
The CHENACC LS Harmonic Balancer Bolt is a must-have for GM Performance Parts fans. It fits all Gen. 3 and 4 LS engines, from 4.8L to 6.2L. This bolt ensures smooth engine operation.
Made from Grade 10.9 alloy steel, it resists rust and corrosion. Its Dacromet coating adds extra protection for long-lasting durability.
Installation is quick and easy. Replace your old bolt with no hassle. Trust this bolt for reliable performance.
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Perfect For:
This product is perfect for GM engine owners and mechanics needing a durable, corrosion-resistant replacement for Gen.3/Gen.4 LS engines. It fits LS1, LS2, LS3, LS6, and others from 4.8L to 6.2L, offering Grade 10.9 strength and easy installation.
Ready to Purchase?
7. Aluminum Oil Diverter ls Barbell fits for GM Gen III & IV Engines LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 4.8L 5.3L 5.7L 6.0L 6.2L
Upgrade your GM Gen III & IV engine with this Aluminum Oil Diverter Barbell. It is designed to replace the factory plastic part with a strong, durable billet aluminum version.
Made from 6061-T6 aluminum with Viton O-rings. Fits LS1, LS3, LS2, LQ4, LQ9, LS6, L92, L99, L33 engines. It has a triple O-ring design to cut down oil leaks.
This part improves oil flow and pressure. It keeps your engine running smooth and protected. Strong, precise, and built to last.
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Perfect For:
This premium aluminum oil diverter barbell is a must-have upgrade for anyone with a GM Gen III & IV engine, including popular models like the LS1, LS3, and 5.3L. If you’re looking to boost your engine’s oil flow and pressure, this is the perfect part for you!
Ready to Purchase?
8. KAKUPPA LS Engine Oil Galley Plug Barbell, Aluminum Oil Diverter Plug Compatible with GM Gen III IV LS1 LS2 LS3 LQ4 LQ9, Performance Engine Parts for 4.8L 5.3L 6.0L 6.2L LS Engines
This KAKUPPA LS Engine Oil Galley Plug is built from 6061-T6 aluminum alloy for strength and heat resistance. Its triple-seal O-ring system stops unfiltered oil from damaging your engine.
It fits GM LS engines like LS1, LS3, and 5.3L–6.2L models. Pre-drilled M4x20mm threaded holes make removal easy. A permanent, durable solution beats flimsy plastic OEM parts.
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Perfect For:
This LS Engine Oil Galley Plug Barbell is perfect for car enthusiasts and mechanics who want to upgrade their GM LS engines. It’s ideal for those seeking better performance and longer-lasting parts.
Ready to Purchase?
9. Knock Sensor Relocation Brackets and 36 Inches Extension Wire Harness for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33
Upgrade your GM Gen III LS V8 engine with this knock sensor relocation kit. It fits 1997-2007 models and includes brackets and a 36-inch extension harness.
Made from high-quality aluminum, the brackets are durable and heat-resistant. The kit is easy to install and works with OEM connectors.
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Perfect For:
This product is perfect for GM Gen III LS V8 engine owners who want to relocate their knock sensors easily. If you need a durable, high-quality bracket and wire harness for your 1997-2007 LS engine, this is the best choice.
Ready to Purchase?
10. Michigan Motorsports LS Oil Pan Gasket – Compatible with 4.8L 5.3L 5.7L 6.0L 6.2L LS Engines – Replaces GM 12612350 – Fits LS1 LS2 LQ4 LQ9 LS3 L92 L94 L76 L77 LY6 L96
The Michigan Motorsports LS Oil Pan Gasket is a premium-quality solution for your LS engine. It’s built tough with aluminum and rubber to ensure a leak-free seal between your oil pan and engine block.
This gasket fits a wide range of LS engines, including 4.8L to 6.2L models. It’s a direct replacement for GM Part #12612350, making installation quick and easy. Perfect for engine rebuilds or fixing oil leaks.
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Perfect For:
This Michigan Motorsports LS Oil Pan Gasket is perfect for LS engine owners who are doing engine rebuilds or fixing oil leaks. It’s a direct replacement for GM part 12612350, ensuring a great fit for your 4.8L to 6.2L LS engine.
Ready to Purchase?
Buying Guide
Upgrading your GM LS engine is an exciting journey. You’re looking for top-notch parts that promise lasting performance. This guide helps you pick the best for your LS1, LQ4, or LQ9.
Your Engaging Experience
Imagine the thrill of a smoother, more powerful engine purring beneath you. You’ve chosen to invest in your vehicle’s heart, and with the right parts, you’ll feel the difference every time you turn the key. It’s about reliability and the pure joy of driving a finely tuned machine.
Factors to Consider When Buying
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Engine Compatibility:
Make sure the part is designed for your specific LS1, LQ4, or LQ9 engine. Always check the engine size and generation. This ensures a perfect fit and optimal function. -
Material Quality:
Look for parts made from durable materials like 6061-T6 aluminum alloy. High-quality materials mean better heat resistance and longer lifespan. This prevents premature wear and tear. -
Performance Enhancement:
Consider how the part will boost your engine’s performance. Some parts improve oil flow, while others enhance valvetrain stability. Choose parts that align with your upgrade goals. -
Ease of Installation:
Opt for parts that are easy to install and are direct replacements for OEM components. This saves you time and effort. Look for clear instructions or designs that simplify the process. -
Durability and Reliability:
Prioritize parts known for their robust construction and reliability. Features like triple O-rings or ARP bolts indicate a focus on longevity. This reduces the risk of future engine failures. -
Brand Reputation:
Choose parts from trusted brands that have a good track record in the automotive industry. Michigan Motorsports and other reputable brands often offer superior quality. This gives you peace of mind. -
Specific Part Function:
Understand what each part does. An oil diverter manages oil flow, while a gasket set ensures proper sealing. Knowing the function helps you select the right component for your needs.