BTR Brian Tooley Racing Delphi LS7 Hydraulic Roller Lifters with Guide Trays | Set of 16 Lifters | Fits 4.8L 5.3L 5.7L 6.0L 6.2L 7.0L GM LS Engines | OEM-Style Reliability

The Brian Tooley Racing (BTR) Delphi LS7 Hydraulic Roller Lifters with Guide Trays kit combines the trusted GM Delphi LS7 lifters (P/N 12499225) with premium guide trays for full valvetrain reliability in LS or LT engine builds. Sourced from Delphi’s Michigan facility—the same plant that built LS7 lifters—the 16 hydraulic roller lifters in this set match OEM specifications and deliver quiet, dependable operation up to ~6,300 rpm. Each kit includes four GM-style guide trays to help maintain proper lifter alignment and prevent binding. Widely used across GM platforms—from stock setups to performance builds—this package is ideal for refreshing your LS lifter assembly with factory-level consistency and ease of installation. No manufacturer warranty on lifters BTR Delphi LS7 lifter cleaning procedure: When receiving your new LS7 lifters we recommend removing them from the packaging and checking for any obvious signs of damage to the lifter body or wheels. The lifters should then be washed in either an automotive solvent tank or with mineral spirits to help remove the stiff packing grease used during lifter assembly. We then recommend you check rollers for any binding or roughness before soaking.

• Genuine Delphi LS7 OEM Lifters – Manufactured to GM PS‑259A standards (P/N 12499225), providing reliability, quiet operation, and part compatibility across LS platforms.
• Includes OEM-Style Guide Trays – Four factory-grade guide trays included to ensure accurate lifter alignment, reduce wear, and eliminate binding—often overlooked with upgrade lifters.
• Full Valvetrain Coverage (Set of 16) – Complete kit replaces all lifters and guides at once, ensuring consistent performance and valve control throughout the engine.
• Broad LS & LT Engine Compatibility – Fits GM LS and LT engines from 4.8L to 7.0L, including LS1, LS2, LS3, LS6, LM7, LQ4, LQ9, LY5, LY6, and LT1/LT4 applications. Alternative for AFM engines requiring delete.
• Trusted by Builders and Enthusiasts – Well-regarded budget alternative to OEM GM lifters, with many owners reporting quiet and consistent performance in real-world tuning and swap scenarios. Great value compared to crate engine parts.