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Engine head bolt sets are critical components for sealing the cylinder head to the engine block. Ensuring a proper seal prevents coolant and oil leaks, maintains compression, and avoids costly engine damage. Selecting a high-quality replacement set is paramount for engine longevity and performance.
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
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...
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
COMPATIBILITY – Fits 2009-2014 Cadillac Escalade ESV; 2009-2013 Cadillac Escalade EXT; 2009-2015 Cadillac CTS; 2009-2014 Cadillac Escalade; 2010-2013 Cadillac Escalade; 2014-2017 Chevrolet SS; 2016-2016 Chevrolet Suburban; 2010-2016 Chevrolet Express...
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
COMPATIBILITY – Fits 2010-2020 Ford Transit Connect; 2014-2020 Ford Transit Connect; 2013-2018 Ford C-Max; 2014-2018 Ford Special Service Police Sedan; 2019-2020 Ford Police Responder Hybrid; 2019-2020 Ford SSV Plug-In Hybrid; 2006-2009 Ford Fusion...
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
COMPATIBILITY – Fits 1990-1997 Ford Aerostar; 1986-1990 Ford Bronco II; 1991-1996 Ford Explorer; 1997-2000 Ford Explorer; 1986-1992 Ford Ranger; 1990-2000 Ford Ranger; 1988-1989 Merkur Scorpio; 1991-1994 Mazda Navajo; 1994-2000 Mazda B4000
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
Complete Head Bolt Kit – Includes all required torque-to-yield bolts for fastening both cylinder heads, saving you time and ensuring proper fitment during engine rebuilds or top-end upgrades.
OEM-Quality Replacement – Manufactured to meet or exceed factory tensile strength and torque specifications, providing dependable clamping force under extreme conditions.
Built for Stock or Performance Builds – Designed for everything from street-driven rebuilds to high-compression or boosted LS performance applications.
2004–2013 LS Engine Coverage – Specifically designed for later-style LS blocks with equal-length head bolts, ensuring proper compatibility with updated GM designs.
Wide LS Engine Fitment – Fits 4.8L, 5.3L, 6.0L, 6.2L, and 7.0L LS engines, including LS2, LS3, LS7, LQ4, LQ9, LY6, LC9, L99, and LM7.
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Engine Head Bolt Sets
Understanding Head Bolt Materials
Head bolts are typically made from hardened steel to withstand the high temperatures and pressures within an engine. Common materials include forged alloy steel, which offers superior strength and durability. Some premium options may feature specialized coatings for enhanced corrosion resistance and improved clamping force retention over time.
Bolt Type: Torque-to-Yield vs. Standard
Most modern engines utilize torque-to-yield (TTY) head bolts. These bolts are designed to stretch to a specific point when torqued, creating a precise and consistent clamping force. Once TTY bolts are stretched, they should not be reused and must be replaced with new ones. Standard or reusable bolts are less common in newer vehicles and are generally suitable for older engine designs or certain repair scenarios.
Compatibility and Fitment
The most crucial factor is ensuring the head bolt set is compatible with your specific vehicle's make, model, year, and engine. Always consult your vehicle's service manual or a reliable parts catalog to confirm the correct part number. Incorrect fitment can lead to improper sealing, leaks, and severe engine damage.
What to Look for in a Replacement Set
A quality replacement set should include all necessary bolts for the job, often with specific lengths and thread patterns. Look for sets from reputable manufacturers known for their quality control and material standards. Some sets may also include new head gaskets, which are recommended to be replaced concurrently with the head bolts for a complete repair.
Installation Considerations
Proper installation is as vital as the quality of the bolts themselves. Always follow the manufacturer's specified torque sequence and torque values precisely. This typically involves a multi-stage tightening process. If you are unsure about the procedure, it is highly recommended to have the work performed by a qualified mechanic.
Frequently Asked Questions
Can I reuse my old head bolts?
For most modern engines, especially those using torque-to-yield (TTY) bolts, reusing old bolts is not recommended. TTY bolts are designed to stretch upon initial torquing and lose their integrity if reused. Always check your vehicle's service manual.
What happens if I use the wrong size head bolts?
Using the wrong size head bolts can prevent the cylinder head from sealing properly against the engine block. This can lead to coolant leaks, oil leaks, compression loss, and potentially catastrophic engine failure.
Do I need to replace the head gasket when replacing head bolts?
It is strongly recommended to replace the head gasket whenever you remove the cylinder head and replace the head bolts. The old gasket may be compromised, and replacing it ensures a proper seal for the new components.
What is the difference between standard and TTY head bolts?
Standard head bolts are designed to be tightened to a specific torque value. Torque-to-yield (TTY) bolts are designed to stretch a specific amount, providing a more precise and consistent clamping force crucial for modern engine sealing.
How do I know which head bolt set is right for my car?
You must verify compatibility based on your vehicle's exact make, model, year, and engine. Consulting your owner's manual, a vehicle-specific parts catalog, or a reputable automotive parts supplier is essential.
Are there any special tools needed for head bolt installation?
Yes, installing head bolts correctly often requires a torque wrench capable of measuring in foot-pounds and inch-pounds, and potentially an angle gauge for TTY bolts. Specialized sockets might also be necessary depending on the engine.
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