Best Automotive Replacement Engine Main Bolts & Studs - Buying Guide
Last Updated: 05/27/2024
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Chevy Gen III/LS Series Small Block Main Stud Kit - Xotic Performance MS334
Asin: B0993P8F5R | Ean: 0663647156532 | UPC: 663647156532
Features
- DIRECT FIT REPLACEMENT - Fits 1997 - 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 - XOTIC 7200 material properties allow for far greater tensile strength compared to 8740 chromoly steel head studs. Rated at 220,000 psi tensile strength, these main studs far exceed clamping forces provided by standard head bolts.
- EASY INSTALLATION - Broached stud ends install & make cylinder head removal easier. Installation manual is included with drawn diagrams to ease the installation process. Head studs are designed to retain cylinder seal even with today's extreme high pressure turbo systems. These studs far exceed clamping forces provided by standard Chevy head bolts.
- IMPROVED CAP ALIGNMENT - Main studs are required for maximum loading & reduced wear and tear on the block threads. They assist with main cap alignment, and there is less of a change of main cap walking because the studs remain stationary during cap clamping. These main studs far exceed clamping forces provided by standard head bolts.
- KIT INCLUDES - 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.
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Easy Installation - Broached Stud Ends Install & Make Cylinder Head Removal Easier. Installation Manual Is Included With Drawn Diagrams To Ease The Installation Process. Head Studs Are Designed To Retain Cylinder Seal Even With Today's Extreme High Pressure Turbo Systems. These Studs Far Exceed Clamping Forces Provided By Standard Chevy Head Bolts..
Kit Includes - 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..
Improved Cap Alignment - Main Studs Are Required For Maximum Loading & Reduced Wear And Tear On The Block Threads. They Assist With Main Cap Alignment, And There Is Less Of A Change Of Main Cap Walking Because The Studs Remain Stationary During Cap Clamping. These Main Studs Far Exceed Clamping Forces Provided By Standard Head Bolts..
Ultra Strength - Xotic 7200 Material Properties Allow For Far Greater Tensile Strength Compared To 8740 Chromoly Steel Head Studs. Rated At 220,000 Psi Tensile Strength, These Main Studs Far Exceed Clamping Forces Provided By Standard Head Bolts..
Brand: Xotic Performance | Manufacturer: Xotic Performance
See On Amazon #2
Ferric Performance - Chevy LS Gen I,II,III/IV Series - 12 Point Black Oxide - Main Cap Side Bolt Kit
Asin: B0BPQ4CCH8 | Model: FP008 | PartNumber: FP008 | Ean: 0850046411076 | UPC: 850046411076
Features
- Grade 12.9 Rated to 1220 MPa
- Replace Lost or Misplaced Main Cap Side Bolts
- 12 Point Black Oxide to match other Ferric Performance Bolt Kits
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12 Point Black Oxide To Match Other Ferric Performance Bolt Kits.
Replace Lost Or Misplaced Main Cap Side Bolts.
Brand: Ferric Performance | Manufacturer: Ferric Performance
Warranty: Performance Engine Hardware No Warranty
See On Amazon #3
Kia 21114-25000 Engine Crankshaft Main Bearing Cap Bolt
Asin: B00L2P91J8 | Model: 21114-25000 | PartNumber: 21114-25000
Brand: Kia | Manufacturer: Kia
See On Amazon #4
FEL-PRO ES 72434 Head Bolt Set
Asin: B07Z98BSQZ | Model: ES 72434 | PartNumber: ES 72434 | Ean: 0019826226990 | UPC: 019826226990
Features
- FEL-PRO ES 72434 Engine Cylinder Head Bolt Set for Toyota Corolla
- COMPATIBILITY Fits 2009-2010 Pontiac Vibe; 2011-2017 Lexus CT200h; 2009-2020 Toyota Corolla; 2009-2014 Toyota Matrix; 2010-2020 Toyota Prius; 2012-2018 Toyota Prius V; 2012-2015 Toyota Prius Plug-In; 2017-2018 Toyota Corolla iM; 2017-2020 Toyota Prius P
- GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Validated for fit, form and function
- See more on Amazon...
Get The Right Part -- Before Purchasing, Research To Ensure That The Part Will Fit Your Vehicle; Enter All Vehicle Information (Year, Make, Model, Engine And Trim) For Compatibility And Check Qualifier Notes.
Application Specific Design To Ensure A Perfect Fit.
Validated For Fit, Form And Function.
Meets Or Exceeds All Original Equipment Specifications.
Compatibility – Fits 2009-2010 Pontiac Vibe; 2011-2017 Lexus Ct200h; 2009-2020 Toyota Corolla; 2009-2014 Toyota Matrix; 2010-2020 Toyota Prius; 2012-2018 Toyota Prius V; 2012-2015 Toyota Prius Plug-In; 2017-2018 Toyota Corolla Im; 2017-2020 Toyota Prius P.
Brand: Fel-Pro | Manufacturer: FEL-PRO
Dimensions: 2.40 x 7.60 x 4.60 inches | Weight: 2.20 pounds
Warranty: Manufacturer Warranty
See On Amazon #5
Speedmaster PCE287.1002 Main Stud Kit
Asin: B00Z5MK2II | Ean: 0012933012982, 0840136533115 | UPC: 012933012982, 840136533115
Features
- 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...
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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....
4-Bolt....
Brand: Speedmaster | Manufacturer: Speedmaster
Dimensions: 2.50 x 4.20 x 6.20 inches | Weight: 3.00 Pounds
See On Amazon #6
ARP 134-5603 Main Stud Kit
Asin: B005ASV91Q | Model: 134-5603 | PartNumber: 134-5603 | Ean: 0672036037765 | UPC: 672036037765
Features
- 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
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Main Stud/Bolt Kit.
Part Number: Arp-134-5603.
Made In Usa.
Brand: ARP | Manufacturer: ARP
Dimensions: 9.00 x 4.00 x 3.00 inches | Weight: 4.30 Pounds
Warranty: Manufacturer warranty
See On Amazon #7
ARP 2345501 Main Cap Stud Kit
Asin: B000CFO3G0 | Model: 234-5501 | PartNumber: 234-5501 | Ean: 0672036009489 | UPC: 672036009489
Features
- 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
- See more on Amazon...
Rated At 200,000 Psi, Which Is Considerably Stronger Than Grade 8 Hardware.
Main Studs Are Recommended Over Main Bolts For A Number Of Reasons, Including More Accurate Torque Readings And Easier Engine Assembly.
Rolled J-Form Threads Are 1000% Stronger Than Other Threads.
Manufactured From 8740 Chrome Moly Steel.
First Available: 06/05/2012
Brand: ARP | Manufacturer: ARP
Dimensions: 9.00 x 4.00 x 3.00 inches | Weight: 2.76 pounds
Warranty: Manufacturer warranty
See On Amazon #8
FEL-PRO ES 72960 Head Bolt Set
Asin: B07Z97TPD5 | Model: ES 72960 | PartNumber: ES 72960 | Ean: 0019826227287 | UPC: 019826227287
Features
- FEL-PRO ES 72960 Engine Cylinder Head Bolt Set for Honda Civic
- COMPATIBILITY Fits 2001-2005 Acura EL; 2001-2005 Honda Civic; 2002-2004 Honda Civic
- GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Validated for fit, form and function
- See more on Amazon...
Get The Right Part -- Before Purchasing, Research To Ensure That The Part Will Fit Your Vehicle; Enter All Vehicle Information (Year, Make, Model, Engine And Trim) For Compatibility And Check Qualifier Notes.
Application Specific Design To Ensure A Perfect Fit.
Validated For Fit, Form And Function.
Meets Or Exceeds All Original Equipment Specifications.
Compatibility – Fits 2001-2005 Acura El; 2001-2005 Honda Civic; 2002-2004 Honda Civic.
Brand: Fel-Pro | Manufacturer: FEL-PRO
Dimensions: 2.80 x 8.00 x 5.00 inches
Warranty: Manufacturer Warranty
See On Amazon #9
ICT Billet USA Made Bolt KIT ONLY LS Rear Main Cover Plate Flange Bolts LS1 LS3 LS2 LSX ICT 551435
Asin: B072PSVBYD | Ean: 0656729844359 | UPC: 656729844359
Features
- Made in the USA bolts
- Heavy duty, high strength, grade 10.9 bolts
- Zinc coated for long lasting corrosion protection and prevents threads from seizing
- No washers needed with these flanged headed JIS spec bolts
- All ICT Billet metric flange bolts are custom made for us, right here in the USA!!
- See more on Amazon...
Zinc Coated For Long Lasting Corrosion Protection And Prevents Threads From Seizing.
All Ict Billet Metric Flange Bolts Are Custom Made For Us, Right Here In The Usa!!.
No Washers Needed With These Flanged Headed Jis Spec Bolts.
Heavy Duty, High Strength, Grade 10.9 Bolts.
Brand: ICT Billet | Manufacturer: ICT Billet
Dimensions: 3.00 x 1.00 x 3.00 inches
See On Amazon #10
ARP 156-5403 Main Stud Kit for Ford 4.6L 2-Bolt
Asin: B001T6EJPG | Model: 156-5403 | PartNumber: 156-5403 | Ean: 0672036033958 | UPC: 672036033958
Features
- Ford Modular 4.6L 2-Bolt w/ tray '03-'04 super charger Main Stud Kit
- Part number: 156-5403
- Fit type: Vehicle Specific
- Package Weight: 2.0 pounds
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Fit Type: Vehicle Specific.
Package Weight: 2.0 Pounds.
Part Number: 156-5403.
First Available: 10/25/2012
Brand: ARP | Manufacturer: ARP
Dimensions: 9.00 x 4.00 x 3.00 Inches | Weight: 1.98 pounds
Warranty: Manufacturer Warranty
See On Amazon #11
ARP 208-5403 Main Stud Kit for Honda Acura
Asin: B001O09WJK | Model: 208-5403 | PartNumber: 208-5403 | Ean: 0672036034344 | UPC: 672036034344
Features
- Package Dimensions: 10.414 H x 22.098 L x 6.096 W (centimetres)
- Package Weight: 2.25 pounds
- Country of Origin : United States
- Fit type: Vehicle Specific
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Country Of Origin : United States.
Fit Type: Vehicle Specific.
Package Weight: 2.25 Pounds.
Brand: ARP | Manufacturer: ARP
Dimensions: 9.00 x 4.00 x 3.00 inches | Weight: 2.40 pounds
See On Amazon #12
ARP 156-5001 Main Cap Side Bolt Kit for Ford M8 Modular Block
Asin: B004PL35AW | Model: 156-5001 | PartNumber: 156-5001 | Ean: 0672036038120 | UPC: 672036038120
Features
- ARP Main Bolt Kit 4 Bolt Main Ford Modular P/N 156-5001
- Package Dimensions: 0.254 H x 23.876 L x 14.223 W (centimeters)
- Package Weight: 0.800 pounds
- Oem equivalent part number: 156-5001
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Package Weight: 0.800 Pounds.
Oem Equivalent Part Number: 156-5001.
Package Dimensions: 0.254 H X 23.876 L X 14.223 W (Centimeters).
First Available: 10/25/2012
Brand: ARP | Manufacturer: ARP
Dimensions: 0.00 x 0.00 x 0.00 inches | Weight: 0.79 Pounds
Warranty: Manufacturer Warranty
See On Amazon #13
Ford Motor Company Engine Crankshaft Main Bearing Bolt - F6AZ6345BA
Asin: B000O03HM4 | Model: F6AZ6345BA | PartNumber: F6AZ6345BA
Features
- Ford Motor Company Engine Crankshaft Main Bearing Bolt
- Country Of Origin: United States
- Item Package Weight: 1.0 lb
- Model Number: F6AZ6345BA
- See more on Amazon...
Item Package Weight: 1.0 Lb.
Model Number: F6az6345ba.
Country Of Origin: United States.
Brand: Ford | Manufacturer: Ford Motor Company
Dimensions: 2.00 x 10.00 x 1.00 inches
See On Amazon #14
ARP 1345401 2-Bolt Main Bolt
Asin: B000CFU4Q8 | Model: 134-5401 | PartNumber: 134-5401 | Ean: 0672036001872 | UPC: 672036001872
Features
- ARP Main Stud Kit Hex Nuts 2-Bolt Mains Small Block Chevy P/N 134-5401
- Part number: 1345401
- Fit type: Vehicle Specific
- Package Weight: 2.25 pounds
- See more on Amazon...
Fit Type: Vehicle Specific.
Package Weight: 2.25 Pounds.
Part Number: 1345401.
First Available: 06/05/2012
Brand: ARP | Manufacturer: ARP
Dimensions: 0.00 x 0.00 x 0.00 Inches | Weight: 1.00 Pounds
Warranty: Manufacturer warranty
See On Amazon #15
ZHSYMX Engine Stand Bolt Kit Stand Bolt 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 Added a Spare Bolt
Asin: B0CRK84S3X | Model: LS-M10-1.5-KIT | PartNumber: LS-M10-1.5-KIT | Ean: 0752815416551 | UPC: 752815416551
Features
- High Quality : High strength grade 10.9 metric flange bolts with clear zinc coated to prevent rust and corrosion.
- Easy To Use : Zinc coated for long lasting corrosion protection and prevents threads from seizing.
- Feature : No washers needed with these flanged headed bolts.
- Package Include : 5 x M10-1.5 x 70mm Bolts, 5 x M10-1.5 x 90mm Bolts, and 10 x M10 Washers.Added spare bolts.
- Warranty If you have any problems, contact us and we will serve you within 24 hours.
- See more on Amazon...
【Feature】: No Washers Needed With These Flanged Headed Bolts..
【Warranty】If You Have Any Problems, Contact Us And We Will Serve You Within 24 Hours..
【Package Include】: 5 X M10-1.5 X 70Mm Bolts, 5 X M10-1.5 X 90Mm Bolts, And 10 X M10 Washers.Added Spare Bolts..
【Easy To Use】: Zinc Coated For Long Lasting Corrosion Protection And Prevents Threads From Seizing..
Brand: ZHSYMX | Manufacturer: ZHSYMX
Dimensions: 1.57 x 4.72 x 2.75 inches | Weight: 1.36 Pounds
Warranty: 2 YEAR
See On Amazon #16
ICT Billet USA Made 12pc Engine Stand Bolt Flange 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 LS3551412
Asin: B011A9HWWI | Model: 551412 | PartNumber: 551412 | Ean: 0656729844120 | UPC: 656729844120
Features
- Metric bolts are Made in the USA
- Heavy duty, high strength, grade 10.9 bolts
- Zinc coated for long lasting corrosion protection and prevents threads from seizing
- No washers needed with these flanged headed JIS spec bolts
- All ICT Billet metric flange bolts are custom made for us, right here in the USA!!
- See more on Amazon...
Zinc Coated For Long Lasting Corrosion Protection And Prevents Threads From Seizing.
All Ict Billet Metric Flange Bolts Are Custom Made For Us, Right Here In The Usa!!.
No Washers Needed With These Flanged Headed Jis Spec Bolts.
Heavy Duty, High Strength, Grade 10.9 Bolts.
Brand: ICT Billet | Manufacturer: ICT Billet
Dimensions: 1.20 x 5.90 x 3.60 inches | Weight: 1.00 pounds
See On Amazon #17
ARP 184-5001 Main Bolt Kit for Oldsmobile 350 2-Bolt
Asin: B001T6HCDC | Model: 184-5001 | PartNumber: 184-5001 | Ean: 0672036004637 | UPC: 672036004637
Features
- Package Dimensions: 5.842 H x 22.098 L x 8.636 W (centimeters)
- Made in USA
- Main Stud/Bolt Kit
- Part number: 184-5001
- See more on Amazon...
Main Stud/Bolt Kit.
Part Number: 184-5001.
Made In Usa.
First Available: 10/25/2012
Brand: ARP | Manufacturer: ARP
Dimensions: 0.00 x 0.00 x 0.00 inches | Weight: 2.04 Pounds
Warranty: Manufacturer warranty
See On Amazon #18
ARP 2545501 Main Stud Kit, 200,000 PSI Chrome Moly Steel, For Select Ford Small Block 2-Bolt Main Applications, 289-302 CID, With Windage Tray
Asin: B000CFS406 | Model: 254-5501 | PartNumber: 254-5501 | Ean: 0672036011390 | UPC: 672036011390
Features
- 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
- See more on Amazon...
Rated At 200,000 Psi, Which Is Considerably Stronger Than Grade 8 Hardware.
Main Studs Are Recommended Over Main Bolts For A Number Of Reasons, Including More Accurate Torque Readings And Easier Engine Assembly.
Rolled J-Form Threads Are 1000% Stronger Than Other Threads.
Manufactured From 8740 Chrome Moly Steel.
First Available: 06/05/2012
Brand: ARP | Manufacturer: ARP
Dimensions: 0.00 x 0.00 x 0.00 inches | Weight: 2.65 Pounds
Warranty: Manufacturer warranty
See On Amazon #19
ICT Billet USA Made 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
Asin: B072C5CCHH | Ean: 0656729844274 | UPC: 656729844274
Features
- Made in the USA bolts
- Heavy duty, high strength, grade 10.9 bolts
- Zinc coated for long lasting corrosion protection and prevents threads from seizing
- No washers needed with these flanged headed JIS spec bolts
- All ICT Billet metric flange bolts are custom made for us, right here in the USA!!
- See more on Amazon...
Zinc Coated For Long Lasting Corrosion Protection And Prevents Threads From Seizing.
All Ict Billet Metric Flange Bolts Are Custom Made For Us, Right Here In The Usa!!.
No Washers Needed With These Flanged Headed Jis Spec Bolts.
Heavy Duty, High Strength, Grade 10.9 Bolts.
Brand: ICT Billet | Manufacturer: ICT Billet
Dimensions: 1.20 x 3.30 x 4.00 inches
See On Amazon #20
Michigan Motorsports LS Rear Engine Cover with Main Seal, Gasket & Bolts Like 12639250 LS1 4.8 5.3 5.7 6.0 6.2
Asin: B09PWV49MY
Features
- LS Rear Engine Cover with Gasket, Rear Main Seal and Bolts
- Fits all 1997-2013 LS Based V8 Engines 4.8 5.3 5.7 6.0 6.2
- Often times the factory GM rear covers suffer from porosity which can lead to leaks that look very similar to the rear main seal or cover gasket leaking. Eliminate any chance of having to do the job twice by replacing the cover while doing your main seal and gasket replacement!
- This gasket has everything you know and love from the GM version: High quality, MLS construction, and it's produced by the same source as the OEM units!
- See product description for fitment applications and more (Gasoline V8 models only)
- See more on Amazon...
Often Times The Factory Gm Rear Covers Suffer From Porosity Which Can Lead To Leaks That Look Very Similar To The Rear Main Seal Or Cover Gasket Leaking. Eliminate Any Chance Of Having To Do The Job Twice By Replacing The Cover While Doing Your Main Seal And Gasket Replacement!.
See Product Description For Fitment Applications And More (Gasoline V8 Models Only).
This Gasket Has Everything You Know And Love From The Gm Version: High Quality, Mls Construction, And It's Produced By The Same Source As The Oem Units!.
Fits All 1997-2013 Ls Based V8 Engines 4.8 5.3 5.7 6.0 6.2.
Brand: Michigan Motorsports | Manufacturer: Michigan Motorsports
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