Looking for the best Automotive Replacement Engine Main Bolts & Studs?
Discover now our comparison of the best Automotive Replacement Engine Main Bolts & Studs. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Engine Main Bolts & Studs are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Engine Main Bolts & Studs in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
- DIRECT FIT REPLACEMENT - Fits 1997 to current Chevrolet Gen III/LS 4.8L 5.3L 5.7L 6.0L 6.2L; LS1 LS2 LS3 LS4 LS6 LQ4 LQ9 LY6 L92 L99 engines. Please see vehicle compatibilities tab above to ensure accurate fitment.
- ULTRA STRENGTH - Utilizing XOTIC 7200 material, these main studs offer superior tensile strength compared to standard 8740 chromoly steel. Rated at 220,000 psi tensile strength, these studs provide significantly enhanced clamping forces, surpassing those of standard bolts.
- EASY INSTALLATION – Broached stud ends allow for easier and more precise installation. Includes a detailed instruction manual with diagrams for a seamless setup.
- PREVENTS MAIN CAP SHIFTING – Main studs provide enhanced cap alignment, reducing the risk of main cap walking or shifting under extreme loads. Unlike bolts, studs remain stationary, offering better thread engagement and longevity.
- COMPLETE KIT WITH ACCESSORIES - 20x Main Studs, 10x M8 Side Bolts, 30x Nuts, 2x Sockets, 1x Allen wrench, and 1x Fastener Assembly Lubricant included. Black oxide finish protects from wear and tear. Hardened parallel washers allow for uniform load distribution and accurate torque readings.
- DISCLAIMER* - These are main studs, not head studs. For head studs, please check our catalog.
- Complete LS Main Bolt and Stud Kit for Maximum Bottom-End Security – This kit includes a combination of main bolts and main studs, ensuring superior clamping force, precise load distribution, and extreme durability for high-performance LS builds.
- Direct Fit for 1997-2013 LS Engines – Compatible with 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L LS-series engines, including LS1, LS2, LS3, LQ4, LM7, LC9, LR4, L96, and L76, making it a perfect replacement for worn or missing factory main bolts and an upgrade for added strength.
- Main Studs for Increased Engine Block Stability – Main studs replace standard bolts in key areas, providing improved crankshaft alignment, reduced main cap walk, and enhanced structural integrity, making them ideal for high-RPM, high-horsepower, and forced-induction applications.
- High-Strength Steel Construction for Maximum Durability – Manufactured from premium-grade steel, these bolts and studs are designed to resist stretching, heat, and high torque loads, ensuring long-term reliability in high-performance and daily-driven LS applications.
- Ideal for Stock Replacements & Performance Builds – Whether you're rebuilding, swapping, or upgrading your LS engine, this main bolt and stud kit provides the necessary reinforcement for both naturally aspirated and boosted setups, helping to prevent crankshaft movement and ensure long-term engine reliability.
- Small Block Chevy...
- 4-Bolt...
- 190,000...
- Includes 12-Point Nuts, Washers Speedmaster engine studs are premium-grade, race-quality studs that are created from aircraft quality 8740 high tensile strength chromoly steel, withstanding up to 190,000 PSI .They are ground and thread-rolled after heat treatment to ensure the exacting tolerances that Speedmaster requires for all of their fasteners. This ensures strength and consistent torque readings. All kits come complete with 4130 heat-treated, parallel-ground washers and high-strength...
- Package Dimensions: 22.3 H x 5.9 L x 10.8 W (centimeters)
- Made in USA
- Main Stud/Bolt Kit
- Part number: ARP-134-5402
- Main studs are designed to meet the exacting standards and demands of professional engine builders
- Manufactured from 8740 chrome moly steel
- Rated at 200,000 PSI, which is considerably stronger than Grade 8 hardware
- Rolled J-form threads are 1000% stronger than other threads
- Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly
- Main studs are designed to meet the exacting standards and demands of professional engine builders
- Manufactured from 8740 chrome moly steel
- Rated at 200,000 PSI, which is considerably stronger than Grade 8 hardware
- Rolled J-form threads are 1000% stronger than other threads
- Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly
- GM LS, LS1, LS2, LS6, LS7, LSX, GEN...
- 4-Bolt...
- 190,000...
- Includes 12-Point Nuts, Washers Speedmaster engine studs are premium-grade, race-quality studs that are created from aircraft quality 8740 high tensile strength chromoly steel, withstanding up to 190,000 PSI .They are ground and thread-rolled after heat treatment to ensure the exacting tolerances that Speedmaster requires for all of their fasteners. This ensures strength and consistent torque readings. All kits come complete with 4130 heat-treated, parallel-ground washers and high-strength...
- Package Dimensions: 5.842 H x 22.098 L x 10.668 W (centimeters)
- Made in USA
- Main Stud/Bolt Kit
- Part number: 1345202
- Main studs are designed to meet the exacting standards and demands of professional engine builders
- Manufactured from 8740 chrome moly steel
- Rated at 200,000 PSI, which is considerably stronger than Grade 8 hardware
- Rolled J-form threads are 1000% stronger than other threads
- Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly
- Package Dimensions: 1.57"H x 7.62"L x 4.44"W
- Made in USA
- Main Stud/Bolt Kit
- Part number: ARP-134-5603
What is the purpose of a comparison site?
When you search for a product on the Internet, you can compare all the offers that are available from the sellers. However, it can take time when it is necessary to open all the pages, compare the opinions of the Internet users, the characteristics of the products, the prices of the different models… Offering you reliable comparisons allows us to offer you a certain time saving and a great ease of use. Shopping on the Internet is no longer a chore, but a real pleasure!
We do everything we can to offer you relevant comparisons, based on various criteria and constantly updated. The product you are looking for is probably among these pages. A few clicks will allow you to make a fair and relevant choice. Don’t be disappointed with your purchases made on the Internet and compare the best Automotive Replacement Engine Main Bolts & Studs now!
Last update on 2025-05-19 / Affiliate links / Images from Amazon Product Advertising API