Piston Set(8) – Dish Top | GM, Chevrolet 5.3L LS-Series Vortec (2004–2006) – VIN "P", "T", "Z" | 3.780" Bore | Floating Pin
Piston Set(8) – Dish Top | GM, Chevrolet 5.3L LS-Series Vortec (2004–2006) – VIN "P", "T", "Z" | 3.780" Bore | Floating Pin
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Piston Set – Dish Top | GM, Chevrolet 5.3L LS-Series Vortec (2004–2006) – VIN "P", "T", "Z" | 3.780" Bore | Floating Pin
Upgrade or rebuild your LS engine with confidence using this high-performance Dish Top Piston Set, specifically designed for 2004–2006 GM, Chevrolet, and GMC trucks, vans, and SUVs equipped with the 5.3L / 325 OHV V8 16V LS-Series Vortec engine and a 3.780" bore.
Why Choose This Piston Set?
Tailored for 2004–2006 5.3L LS engines, this piston set offers a balance of strength, weight, and durability. The hypereutectic alloy provides better thermal stability than cast pistons, while the floating pin design allows easier rod installation and reduced stress under high RPM or load.
Compatibility
Compatibility
Vehicle Compatibility:
2004 models with VIN “P”
2005–2006 models with VIN “T” or “Z”
Chevrolet: Silverado, Suburban, Tahoe, Avalanche, Express
GMC: Sierra, Yukon, Savana
Fits Gen III LS-based 5.3L Vortec engines
For use with floating pin connecting rods
Standard 3.780" bore (oversize options available)
Features
Features
Piston Specifications:
Dish top configuration – maintains factory compression ratio and combustion efficiency
1.323" Compression Height (CH)
Made from hypereutectic aluminum alloy for superior heat resistance and strength
Graphite or moly-coated skirts reduce friction and wear during startup
Designed for floating wrist pins (full-floating type – circlips required)
Built to OEM specifications or better for long-term performance and reliability
What’s Included:
Set of 8 pistons
Floating wrist pins
Compatible with standard ring groove dimensions (rings sold separately)
Ideal For:
Stock rebuilds, mild performance upgrades, or high-mileage restorations
Engines requiring pistons with floating pins and 1.323" CH
Applications where heat tolerance and reduced skirt wear are important
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