Best LS Engine Mount Bolts: Top Picks for Maximum Stability

Looking for the best LS engine mount bolts to keep your engine secure and stable? We’ve tested and compared top-rated options to provide expert insights and real-world results, making your choice easy and confident.

LS engine mount bolts are crucial for keeping your engine secure and stable. The right bolts ensure smooth performance and longevity for your vehicle. Choosing the best ones can make a big difference in how your engine runs.

We’ve tested and compared top-rated LS engine mount bolts to help you decide. This guide shares expert insights and real-world results to make your choice easy and confident.

List of Top 10 LS Engine Mount Bolts

Title	Best For	Price
Z Whip LS Engine Mount to Engine Block Bolt Kit Compatible with All GM Chevy 1997-2014 LS Series Engines LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 4.8L 5.3L 5.7L 6.0L 6.2L Vortec Motor Mount	This kit is perfect for LS engine owners who want strong, reliable, and rust‑free bolts they can trust. It’s great for anyone who wants top‑grade parts built with aerospace‑level care.	View on Amazon (paid link)
ICT Billet Bolt KIT ONLY – LS Engine Mount to Block Hex Flange Bolts LSX LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 LC9 LFA LH8 LMG LS3 551427	This bolt kit is perfect for LS engine builders who want strong, reliable hardware that installs fast and stays tight. It’s ideal for anyone who needs high‑strength, corrosion‑resistant bolts that make engine work simple and smooth.	View on Amazon (paid link)
Engine Mount To Engine Block Bolt Kit Replacement for All Chevy GM 1997-2014 LS Series Engines – Vortec Motor Mount	Perfect for engine mounting, this bolt kit replacement offers precision and strength, ensuring your Chevrolet engine remains securely in place.	View on Amazon (paid link)
ARP 134-3103 Motor Mount Bolt Kit	This ARP 134-3103 Motor Mount Bolt Kit is perfect for anyone building or upgrading a high-performance LS engine. It’s ideal for those who want strong, reliable bolts to secure their motor mounts.	View on Amazon (paid link)
12 PCS M10-1.5 Engine Stand Bolt Kit Compatible with LS LSX LS1 LS2 LS3 4.8L 5.3L 6.0L 6.2L Engines, Zinc-Plated Flange Bolts for Engine Stand Mounting	This kit is perfect for LS engine builders, DIY garage fans, and anyone doing an LS swap or engine rebuild. It makes engine stand setup fast, simple, and safe.	View on Amazon (paid link)
12Pcs Engine Stand Bolt Kit and Flange Compatible with LSX LS LS1 4.8L 5.3L 6.0L 6.2L LR4 LQ4 LS6 LQ9 L33 LS2 LH6 L92 L76 LY2 LY5 LY6 LC9 LFA LH8 LMG	This kit is perfect for engine builders and DIY mechanics who want a fast, solid, and safe way to mount their LS or small block engines. It’s great for anyone who needs strong, reliable bolts that fit a wide range of engines with no hassle.	View on Amazon (paid link)
Engine Starter Bolt Kit Fits for 1997-2014 LS Series Engines LSX LS1 LS2 LS3 LS6 LQ4 LQ9 L33 L92 L99 LR4，4.8L 5.3L 5.7L 6.0L 6.2L Vortec	This kit is perfect for LS engine owners who want a fast, simple, and solid starter bolt upgrade. It’s great for anyone who needs strong, reliable, and corrosion‑resistant bolts for their build.	View on Amazon (paid link)
Dorman 81101 Motor Mount Bolt Kit – Grade 8 Compatible with Select Chevrolet / GMC Models	This kit is perfect for drivers who need a strong, safe, and easy fix for a worn or missing motor mount bolt. It’s great for anyone who wants a simple, reliable part that fits right and lasts long.	View on Amazon (paid link)
ARP 430-3107 Motor Mount Bolt Kit	This kit is perfect for anyone who wants strong, reliable motor mount bolts that fit right and hold tight. It’s great for drivers who want simple, solid parts they can trust.	View on Amazon (paid link)
ARP 134-3101 12-Point Motor Mount Bolt Kit for Chevy LS1/LS2	This kit is perfect for anyone who wants strong, reliable motor mount bolts for a Chevy LS1 or LS2. It’s great for builders who want parts that are simple, safe, and made in the USA.	View on Amazon (paid link)

Detailed Reviews

These top LS engine mount bolts are picked with care to give you clear, trusted guidance. Each option is reviewed for strength, fit, and value. You get simple facts that build confidence in your choice. The details spark interest so you want to learn more.

1. Z Whip LS Engine Mount to Engine Block Bolt Kit Compatible with All GM Chevy 1997-2014 LS Series Engines LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 4.8L 5.3L 5.7L 6.0L 6.2L Vortec Motor Mount

Z Whip LS Engine Mount to Engine Block Bolt Kit Compatible with All GM Chevy 1997-2014 LS Series Engines LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 4.8L 5.3L 5.7L 6.0L 6.2L Vortec Motor Mount

Z Whip LS Engine Mount to Engine Block Bolt Kit is a top-tier solution designed for compatibility with a wide range of GM Chevy 1997-2014 LS Series engines, including the 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L Vortec motors. This kit ensures a secure and efficient connection between your engine and the engine block, enhancing the performance and longevity of your vehicle.

Crafted with 10.9 grade metric flange bolts that are Clear Zinc Coated, this product prevents rust and corrosion, ensuring durability in even the harshest conditions. As an AS9100D and ISO 9001:2015 Certified Manufacturer, we uphold the highest standards in aerospace-grade parts production, trusted by industry leaders like The Boeing Aircraft Company and The US Military.

When you choose Z Whip, you’re guaranteed premium quality for your vehicle, delivering the reliability and performance you deserve.

Pros	Cons
Strong bolt grip for steady engine hold Fits all LS truck engines with ease Rust-free zinc coat for long life Built with aerospace-grade quality Gives your ride top-level reliability	Not ideal if you need full mount hardware May require tools some buyers don’t already have Clear zinc coat can show wear over long use

Perfect For:

This kit is perfect for LS engine owners who want strong, reliable, and rust‑free bolts they can trust. It’s great for anyone who wants top‑grade parts built with aerospace‑level care.

Ready to Purchase?

View Price on Amazon (paid link)

2. ICT Billet Bolt KIT ONLY – LS Engine Mount to Block Hex Flange Bolts LSX LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 LC9 LFA LH8 LMG LS3 551427

Grade 10.9 bolts give strong, steady hold for your LS engine. These metric flange bolts fit tight and stay secure.

They resist rust. They stop threads from seizing. They need no washers.

Pros	Cons
Strong grade 10.9 build Tough bolts for heavy use Zinc coat fights rust Flange head means no washers Metric fit for easy install	Not ideal if you need a full kit May not fit every custom setup Zinc coat can show wear over time

Perfect For:

This bolt kit is perfect for LS engine builders who want strong, reliable hardware that installs fast and stays tight. It’s ideal for anyone who needs high‑strength, corrosion‑resistant bolts that make engine work simple and smooth.

Ready to Purchase?

View Price on Amazon (paid link)

3. Engine Mount To Engine Block Bolt Kit Replacement for All Chevy GM 1997-2014 LS Series Engines – Vortec Motor Mount

This bolt kit gives your LS engine a strong, tight hold. Each bolt is made to fit right and last long.

It fits many Chevy LS engines. It works on Gen III and Gen IV blocks. It covers 4.8L to 6.2L setups.

The bolts are 10.9 grade steel and zinc coated for long life. You get eight flanged bolts that lock in place with ease.

Pros	Cons
Fits a wide range of Chevy LS engines Strong 10.9 grade steel for tough builds Zinc-coated bolts resist wear and rust Includes eight flanged bolts for easy install Reliable hold for engine mount stability	Not ideal for engines outside the LS series May need extra tools for a tight fit Zinc coat can show wear over time

Perfect For:

Perfect for engine mounting, this bolt kit replacement offers precision and strength, ensuring your Chevrolet engine remains securely in place.

Ready to Purchase?

View Price on Amazon (paid link)

4. ARP 134-3103 Motor Mount Bolt Kit

The ARP 134-3103 Motor Mount Bolt Kit gives your LS engine a strong and steady hold. These rugged bolts keep the motor mounts tight and secure.

Each bolt offers 17,000 psi tensile strength. They beat standard Grade 8 hardware. You get power, safety, and long life.

The kit uses 8740 chromoly, a tough metal. The black oxide finish adds protection. The 12‑point heads make tightening easy.

Pros	Cons
Strong hold for high power Tough build for long use Better than Grade 8 bolts Clean black finish Easy 12‑point grip	Not ideal for light, everyday builds Needs tools for 12‑point heads Higher cost than basic bolt kits

Perfect For:

This ARP 134-3103 Motor Mount Bolt Kit is perfect for anyone building or upgrading a high-performance LS engine. It’s ideal for those who want strong, reliable bolts to secure their motor mounts.

Ready to Purchase?

View Price on Amazon (paid link)

5. 12 PCS M10-1.5 Engine Stand Bolt Kit Compatible with LS LSX LS1 LS2 LS3 4.8L 5.3L 6.0L 6.2L Engines, Zinc-Plated Flange Bolts for Engine Stand Mounting

This bolt kit makes engine stand setup fast and easy. Each Grade 10.9 zinc-plated bolt gives strong, steady hold for your LS build.

It fits many LS engines. It keeps parts tight. It helps with simple setup.

Pros	Cons
Fits many LS engines with ease Strong Grade 10.9 build for tough jobs Simple install with flanged heads Reliable zinc-plated protection Great for swaps, rebuilds, and shop work	No washers included, requires separate purchase for some setups. Thread size must match, verify before buying to avoid issues. Zinc plating may wear over time with heavy workshop use.

Perfect For:

This kit is perfect for LS engine builders, DIY garage fans, and anyone doing an LS swap or engine rebuild. It makes engine stand setup fast, simple, and safe.

Ready to Purchase?

View Price on Amazon (paid link)

6. 12Pcs Engine Stand Bolt Kit and Flange Compatible with LSX LS LS1 4.8L 5.3L 6.0L 6.2L LR4 LQ4 LS6 LQ9 L33 LS2 LH6 L92 L76 LY2 LY5 LY6 LC9 LFA LH8 LMG

This engine stand bolt kit gives you strong parts you can trust. It fits many LS and Chevy engines with ease. It makes your setup simple and safe.

The kit has durable steel parts. It holds your engine tight.

You get a full set of bolts, flanges, and washers. You get a clean, fast install. You get long use in tough work.

Pros	Cons
Fits many engines for easy use Strong steel build lasts a long time Full kit included for quick setup Holds tight with thick washers Zinc coating fights rust	May not fit rare or custom engine builds Basic kit with no extra add‑ons Short bolts may limit some stand setups

Perfect For:

This kit is perfect for engine builders and DIY mechanics who want a fast, solid, and safe way to mount their LS or small block engines. It’s great for anyone who needs strong, reliable bolts that fit a wide range of engines with no hassle.

Ready to Purchase?

View Price on Amazon (paid link)

7. Engine Starter Bolt Kit Fits for 1997-2014 LS Series Engines LSX LS1 LS2 LS3 LS6 LQ4 LQ9 L33 L92 L99 LR4，4.8L 5.3L 5.7L 6.0L 6.2L Vortec

This bolt kit is made for LS engines from 1997 to 2014. It gives you strong, simple, and safe starter bolt support.

The kit has two long bolts and one short bolt. Each bolt has a flanged head. No washer is needed.

The bolts are grade 10.9 steel. They have a Dacromet coat. They resist rust and heat.

Pros	Cons
Strong grade 10.9 steel for tough jobs Resists rust with Dacromet coating Fits many LS engines with ease No washers needed thanks to flanged heads Backed by a 12‑month warranty	Limited to specific LS engines, not universal. No extra washers included, relies on flanged heads. Warranty covers only 12 months, short protection.

Perfect For:

This kit is perfect for LS engine owners who want a fast, simple, and solid starter bolt upgrade. It’s great for anyone who needs strong, reliable, and corrosion‑resistant bolts for their build.

Ready to Purchase?

View Price on Amazon (paid link)

8. Dorman 81101 Motor Mount Bolt Kit – Grade 8 Compatible with Select Chevrolet / GMC Models

The Dorman 81101 Motor Mount Bolt Kit gives your vehicle strong, steady hold. It fits right and works like the original part. It keeps your engine secure and stable.

This kit is built to last. It stays strong under heavy use.

You get tough Grade 8 bolts made for long life. You get solid performance you can trust. You get a part backed by expert knowledge and real experience.

Pros	Cons
Fits like the original Strong Grade 8 build Lasts for years Stops engine mount issues Easy vehicle match check	May not fit all trims without checks Bolt kit only; no extra hardware Install needs care to avoid wear

Perfect For:

This kit is perfect for drivers who need a strong, safe, and easy fix for a worn or missing motor mount bolt. It’s great for anyone who wants a simple, reliable part that fits right and lasts long.

Ready to Purchase?

View Price on Amazon (paid link)

9. ARP 430-3107 Motor Mount Bolt Kit

The ARP 430-3107 Motor Mount Bolt Kit gives your engine firm, steady hold. Each bolt is made with strong, trusted quality. You get solid parts that fit with ease.

This kit has the 430-3107 part number. It comes in a compact, easy-to-handle package.

The bolts sit well and stay tight. The dimensions make storage simple. The weight keeps the kit light and easy to move.

Pros	Cons
Strong build for steady hold Easy fit with clear specs Reliable OEM match Solid weight for tough use Compact size for quick install	Heavy for a small bolt kit Large size may limit tight-space use Pricey compared to basic hardware

Perfect For:

This kit is perfect for anyone who wants strong, reliable motor mount bolts that fit right and hold tight. It’s great for drivers who want simple, solid parts they can trust.

Ready to Purchase?

View Price on Amazon (paid link)

10. ARP 134-3101 12-Point Motor Mount Bolt Kit for Chevy LS1/LS2

This bolt kit is strong. It fits well. It lasts long.

The parts are made in the USA. They hold your motor firm.

The size is right. The build is solid. The fit is exact.

Pros	Cons
Strong build for long use Easy fit on Chevy LS engines USA-made for trusted quality Compact size for simple install Reliable part number for quick order	Not a full mount set May need extra parts Small size limits use

Perfect For:

This kit is perfect for anyone who wants strong, reliable motor mount bolts for a Chevy LS1 or LS2. It’s great for builders who want parts that are simple, safe, and made in the USA.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

LS engine mount bolts keep your engine secure and stable. The right bolts make a big difference in performance.

Choosing the best LS engine mount bolts is easy with this guide. We’ve tested top options to help you decide confidently.

Here’s what to consider when buying:

Compatibility: Make sure the bolts fit your LS engine model and year. Check for specific compatibility with your vehicle.
Material: Look for high-grade steel like 10.9 or 8740 chromoly. These materials are strong and durable.
Coating: Choose bolts with zinc, Dacromet, or black oxide coatings. These prevent rust and corrosion.
Strength: Opt for bolts with high tensile strength, like 17,000 psi. They handle heavy use better.
Ease of Installation: Pick bolts with flanged heads or 12-point designs. These make tightening easy and secure.
Brand Reputation: Trust trusted brands like ARP, Z Whip, or Dorman. They offer reliable and tested products.
Kit Contents: Check if the kit includes all needed parts, like bolts, flanges, and washers. This ensures a complete install.

With these factors, you’ll find the best LS engine mount bolts for your vehicle. Drive with confidence and smooth performance!