Texas Speed (TSP) Delphi LS7 Lifters and Trays Kit – Set of 16 (28-25341990-16)
A complete lifter replacement for your LS cam swap or AFM/DOD delete: 16 genuine Delphi LS7 hydraulic roller lifters from Texas Speed & Performance plus 4 new lifter guide trays, in one kit.
What's Included
- 16 TSP/Delphi LS7 hydraulic roller lifters (28-25341990)
- 4 new LS lifter guide trays
Why LS7 Lifters?
Delphi built the LS7 lifter for the Corvette Z06, and it has become the standard replacement lifter for LS and LT cam swaps. It is a drop-in, non-AFM hydraulic roller lifter that handles higher spring pressure and RPM than a worn factory lifter.
Fitment
- GM Gen III/IV LS and Gen V LT: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L
- Engine codes: LS1, LS2, LS3, LS6, LS7, LM7, LQ4, LQ9, L83, L86, LT1
- Non-AFM/DOD only. Engines that came with AFM/DOD need a full AFM delete: non-AFM cam, these lifters and trays, a DOD delete valley cover and a tune.
Install Tips
- Always use new guide trays with new lifters. Old trays wear and can let lifters rotate, which can destroy the cam and lifters.
- Soak the lifters in fresh engine oil for 15–30 minutes before install for first-start lubrication.
LS7 Lifter FAQ
Will these work for a 5.3 AFM/DOD delete?
Yes, as part of a full delete (non-AFM cam, lifters, trays, valley cover, and a tune to turn AFM off).
Do I really need new trays?
Yes. Trays are wear items, which is why this kit includes them. Already have new trays? Get the TSP LS7 lifters only.
Do these fit Gen V LT engines?
Yes, they fit L83, L86 and LT1 (non-AFM or AFM-deleted).
