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Thumbnail Filmstrip of Duramax 2001-2016 Head Saver Shim SBI 230-2145 Images
Protecting the integrity of your engine after a major machining job requires more than just standard replacement parts; it requires a precision-engineered solution to restore factory geometry. The SBI 230-2145 Head Saver Shim is specifically developed for the 2001-2016 GM 6.6L Duramax engine family, spanning the LB7, LLY, LBZ, LMM, LML, and LGH platforms. When a cylinder head is resurfaced, the removal of material can push the head thickness below strict factory limits, leading to potential valve-to-piston interference or incorrect compression ratios. This shim acts as a critical restorative layer, allowing you to salvage and reuse high-value cylinder heads that would otherwise be destined for the scrap pile.
- Precision Thickness: Engineered at 0.020" to accurately compensate for material removed during the milling process.
- CNC Laser Cut Technology: Unlike traditional press-punched shims that suffer from "rolled edges" and burrs, these are CNC laser-cut for a perfectly flat, burr-free profile that ensures a superior seal.
- Cold Rolled Steel Construction: Manufactured from high-grade cold rolled steel to provide the structural rigidity and heat resistance necessary for high-compression diesel environments.
- Individual Availability: Sold individually to allow for precise ordering based on your specific engine build requirements.
By choosing the SBI Head Saver Shim, you are investing in a manufacturing process that prioritizes metallurgical stability and dimensional accuracy. The use of cold rolled steel ensures that the shim maintains its thickness under the extreme clamping forces of a Duramax head bolt sequence. Furthermore, the transition to CNC laser production represents a significant upgrade over older manufacturing methods, providing a clean edge that eliminates the risk of stress risers or uneven seating. This component is an essential tool for any professional engine builder or diesel enthusiast looking to maintain OEM-level performance while maximizing the lifespan of their engine components.
Note: SBI Head Saver Shims should be installed on the block surface with the cylinder head gasket on top and should be used with conventional head gaskets only
Protecting the integrity of your engine after a major machining job requires more than just standard replacement parts; it requires a precision-engineered solution to restore factory geometry. The SBI 230-2145 Head Saver Shim is specifically developed for the 2001-2016 GM 6.6L Duramax engine family, spanning the LB7, LLY, LBZ, LMM, LML, and LGH platforms. When a cylinder head is resurfaced, the removal of material can push the head thickness below strict factory limits, leading to potential valve-to-piston interference or incorrect compression ratios. This shim acts as a critical restorative layer, allowing you to salvage and reuse high-value cylinder heads that would otherwise be destined for the scrap pile.
Precision Thickness: Engineered at 0.020" to accurately compensate for material removed during the milling process.
CNC Laser Cut Technology: Unlike traditional press-punched shims that suffer from "rolled edges" and burrs, these are CNC laser-cut for a perfectly flat, burr-free profile that ensures a superior seal.
Cold Rolled Steel Construction: Manufactured from high-grade cold rolled steel to provide the structural rigidity and heat resistance necessary fo[...]
Protecting the integrity of your engine after a major machining job requires more than just standard replacement parts; it requires a precision-engineered solution to restore factory geometry. The SBI 230-2145 Head Saver Shim is specifically developed for the 2001-2016 GM 6.6L Duramax engine family, spanning the LB7, LLY, LBZ, LMM, LML, and LGH platforms. When a cylinder head is resurfaced, the removal of material can push the head thickness below strict factory limits, leading to potential valve-to-piston interference or incorrect compression ratios. This shim acts as a critical restorative layer, allowing you to salvage and reuse high-value cylinder heads that would otherwise be destined for the scrap pile.
- Precision Thickness: Engineered at 0.020" to accurately compensate for material removed during the milling process.
- CNC Laser Cut Technology: Unlike traditional press-punched shims that suffer from "rolled edges" and burrs, these are CNC laser-cut for a perfectly flat, burr-free profile that ensures a superior seal.
- Cold Rolled Steel Construction: Manufactured from high-grade cold rolled steel to provide the structural rigidity and heat resistance necessary for high-compression diesel environments.
- Individual Availability: Sold individually to allow for precise ordering based on your specific engine build requirements.
By choosing the SBI Head Saver Shim, you are investing in a manufacturing process that prioritizes metallurgical stability and dimensional accuracy. The use of cold rolled steel ensures that the shim maintains its thickness under the extreme clamping forces of a Duramax head bolt sequence. Furthermore, the transition to CNC laser production represents a significant upgrade over older manufacturing methods, providing a clean edge that eliminates the risk of stress risers or uneven seating. This component is an essential tool for any professional engine builder or diesel enthusiast looking to maintain OEM-level performance while maximizing the lifespan of their engine components.
Note: SBI Head Saver Shims should be installed on the block surface with the cylinder head gasket on top and should be used with conventional head gaskets only