Product Overview
- Displacement: 4,806 cc (4.8L / 293.3 cu in)
- Engine Family: GM LS-based small-block V8, Gen III (LR4) or Gen IV (LY2, L20)
- Configuration: V8, OHV, 16 valves
- Horsepower: 255 to 302 hp depending on variant and year
- Condition: OEM used, compression verified and inspected
- Availability: LR4 (1999 to 2006), LY2 (2007 to 2009), and L20 (2010 to 2014) variants in stock
- Shipping: Free freight to all 50 states, 5 to 10 business days
- Every cylinder pressure-tested with results shared before payment
- Variant confirmed (LR4, LY2, or L20) with Gen III versus Gen IV identified for PCM compatibility
- No AFM (Active Fuel Management) on any variant, eliminates the 5.3L lifter collapse failure mode
- Zero core charge, your existing engine stays with you
- Backed by a 15 day replacement warranty against internal defects


