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Thumbnail Filmstrip of Duramax 2001-2016 Head Bolt Set SBI 220-1099 Images
The SBI 220-1099 Head Bolt Set is an essential component for maintaining the structural integrity of your 6.6L Duramax engine. Designed specifically for the 2001–2016 model years (LB7 through LML/LGH), these fasteners are engineered to handle the high-pressure environment of a heavy-duty diesel engine. Because the cylinder head is subject to immense combustion forces, using a fresh set of high-quality bolts during reassembly is not just a recommendation—it is a technical necessity to prevent head gasket failure and ensure a perfect seal between the block and the head.
- Torque-to-Yield (TTY) Engineering: These fasteners are designed to be tightened beyond their elastic limit, stretching slightly to provide a more consistent and permanent clamping force than standard bolts.
- Precision Specifications: Each bolt is manufactured to a precise 12 mm diameter and 121 mm length, ensuring an exact match for the factory dimensions required in GM 6.6L assemblies.
- Comprehensive Hardware: The set includes 18 specialized bolts and accompanying washers, providing the necessary components for a single cylinder head.
- Guaranteed Quality: Every set comes backed by a 1-year limited manufacturer warranty, offering peace of mind for your engine rebuild.
When performing a top-end overhaul, it is vital to remember that TTY fasteners are strictly intended for single-use installation. Once these bolts have been torqued to their yield point, they undergo a permanent physical transformation and cannot be safely reused without risking a loss in clamping tension. Please note that for a complete 6.6L Duramax engine overhaul, two sets are required to service both cylinder heads. By choosing the SBI 220-1099 set, you are ensuring that your engine reassembly meets factory specifications with a reliable, professional-grade fastening solution.
Specifications:
- Length: 121mm
- Diameter: 12mm
- Quantity: 18 Bolts & Washers (Covers 1 Side of Engine)
Note: Does Not Include OEM Small Outer 8mm X 90mm Allen Head Bolts
The SBI 220-1099 Head Bolt Set is an essential component for maintaining the structural integrity of your 6.6L Duramax engine. Designed specifically for the 2001–2016 model years (LB7 through LML/LGH), these fasteners are engineered to handle the high-pressure environment of a heavy-duty diesel engine. Because the cylinder head is subject to immense combustion forces, using a fresh set of high-quality bolts during reassembly is not just a recommendation—it is a technical necessity to prevent head gasket failure and ensure a perfect seal between the block and the head.
Torque-to-Yield (TTY) Engineering: These fasteners are designed to be tightened beyond their elastic limit, stretching slightly to provide a more consistent and permanent clamping force than standard bolts.
Precision Specifications: Each bolt is manufactured to a precise 12 mm diameter and 121 mm length, ensuring an exact match for the factory dimensions required in GM 6.6L assemblies.
Comprehensive Hardware: The set includes 18 specialized bolts and accompanying washers, providing the necessary components for a single cylinder head.
Guaranteed Quality: Every set comes backed by a 1-year limite[...]
The SBI 220-1099 Head Bolt Set is an essential component for maintaining the structural integrity of your 6.6L Duramax engine. Designed specifically for the 2001–2016 model years (LB7 through LML/LGH), these fasteners are engineered to handle the high-pressure environment of a heavy-duty diesel engine. Because the cylinder head is subject to immense combustion forces, using a fresh set of high-quality bolts during reassembly is not just a recommendation—it is a technical necessity to prevent head gasket failure and ensure a perfect seal between the block and the head.
- Torque-to-Yield (TTY) Engineering: These fasteners are designed to be tightened beyond their elastic limit, stretching slightly to provide a more consistent and permanent clamping force than standard bolts.
- Precision Specifications: Each bolt is manufactured to a precise 12 mm diameter and 121 mm length, ensuring an exact match for the factory dimensions required in GM 6.6L assemblies.
- Comprehensive Hardware: The set includes 18 specialized bolts and accompanying washers, providing the necessary components for a single cylinder head.
- Guaranteed Quality: Every set comes backed by a 1-year limited manufacturer warranty, offering peace of mind for your engine rebuild.
When performing a top-end overhaul, it is vital to remember that TTY fasteners are strictly intended for single-use installation. Once these bolts have been torqued to their yield point, they undergo a permanent physical transformation and cannot be safely reused without risking a loss in clamping tension. Please note that for a complete 6.6L Duramax engine overhaul, two sets are required to service both cylinder heads. By choosing the SBI 220-1099 set, you are ensuring that your engine reassembly meets factory specifications with a reliable, professional-grade fastening solution.
Specifications:
- Length: 121mm
- Diameter: 12mm
- Quantity: 18 Bolts & Washers (Covers 1 Side of Engine)
Note: Does Not Include OEM Small Outer 8mm X 90mm Allen Head Bolts