4.8 LS Rebuild Kit
4.8 LS Rebuild & Refresh Kits — LR4, LY2, L20
Parts kits for the GM 4.8L LS (LR4, LY2, L20): standard-bore Mahle rings, bearings, Fel-Pro gasket sets, cams, valve springs, timing sets and oil pumps — matched to your RPO code.
Build my refresh kitPlan a full rebuildPick your RPO code
| RPO | Engine | |
|---|---|---|
| LR4 | 4.8L iron, Gen III, 1999–2007 | Build LR4 refresh kit → Full LR4 rebuild → |
| LY2 | 4.8L iron, Gen IV, 2007–2009 | Build LY2 refresh kit → Full LY2 rebuild → |
| L20 | 4.8L iron, Gen IV, 2010–2013 | Build L20 refresh kit → Full L20 rebuild → |
What we match for you
- Piston rings: Mahle 41859CP (3.780" bore, 1.5/1.5/3.0mm) — $65.99
- Gaskets: Fel-Pro HS26190PT4 head set + CS9284 conversion set
- Bearings: King and Dura-Bond main, rod and cam bearing sets
- Valvetrain: Texas Speed cams, spring kits, pushrods, timing sets and BTR / COMP trunnion kits
- Oiling: Melling oil pumps, rear covers, Fast Fish seals
Questions
Main, rod and cam bearings, a standard-bore piston ring set matched to your engine's ring grooves, head and lower gasket sets, crank seals, plus optional cam, lifters, pushrods, valve springs, timing set, oil pump and a rocker trunnion upgrade. Anything you want to keep — covers, oil pan, balancer — you mark "re-use mine" at no charge.
No. Order the parts kit and every part drop-ships from our suppliers to you, with a machine-shop spec sheet you can hand to your local shop. Or bring the engine to our Glendale, AZ shop and we rebuild it.
It's on the Service Parts Identification sticker in the glove box, console lid or spare-tire cover. You can also match the 8th digit of the VIN.