The BTR Delphi LS7 Lifters are a set of 16 hydraulic roller lifters built to Delphi OEM specifications for GM LS-Series and GenV LT-Series engines. Each lifter measures 0.842 in outside diameter and is designed for LS7 and other compatible valvetrain applications, and also works in SBC and LT1 engines that originally used hydraulic roller lifters. The set ships with BTR's exclusive soaking and storage trays.
- Part Number: X12499225-16
- Type: Hydraulic Roller Lifter
- Outside Diameter: 0.842 in
- Application: GM LS-Series / GM GenV LT-Series, including LS7; also compatible with SBC and LT1 engines originally equipped with hydraulic roller lifters
- Quantity: Set of 16
- Includes: BTR-exclusive lifter soaking & storage trays
- Install Note: Wash off packing grease with solvent or mineral spirits and check rollers for binding before soaking in oil; recommended installation preload is .060"-.080"; use new factory-type lifter trays for installation
- Warranty: Sold without manufacturer warranty
FAQ
What engines are the BTR Delphi LS7 Lifters (X12499225-16) compatible with?
These lifters are designed for GM LS-Series and GenV LT-Series engines, including LS7 applications, and also work in SBC and LT1 engines that originally used hydraulic roller lifters.
How many lifters are included in this set?
This part number includes a complete set of 16 hydraulic roller lifters, enough for a full LS or GenV LT engine.
What is the outside diameter of these lifters?
Each lifter has a 0.842 in outside diameter, matching Delphi OEM specifications.
Is there a recommended installation and cleaning procedure?
Yes. BTR recommends inspecting each lifter for damage, washing off the packing grease with an automotive solvent tank or mineral spirits, checking the rollers for binding, and soaking in oil before installation. Recommended preload is .060"-.080", and new factory-type lifter trays are recommended. This lifter set does not carry a manufacturer warranty.
