Piston Set(8) – Flat Top | GM, Chevrolet 5.3L LS-Series Vortec (2005–2009) – VIN “0, 3, 4, B, J, L, M” | 3.780" Bore | Floating Pin
Piston Set(8) – Flat Top | GM, Chevrolet 5.3L LS-Series Vortec (2005–2009) – VIN “0, 3, 4, B, J, L, M” | 3.780" Bore | Floating Pin
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Piston Set – Flat Top | GM, Chevrolet 5.3L LS-Series Vortec (2005–2009) – VIN “0, 3, 4, B, J, L, M” | 3.780" Bore | Floating Pin
Upgrade your LS engine with this precision-engineered Flat Top Piston Set, designed for 2005–2009 GM, Chevrolet, and GMC trucks, vans, and SUVs running the 5.3L / 325 OHV V8 16V LS-Series Vortec engine with a 3.780" bore and specific VIN codes: “0”, “3”, “4”, “B”, “J”, “L”, or “M.”
Why Choose This Piston Set?
These flat top pistons are ideal for 5.3L Gen IV LS engines equipped with AFM, offering enhanced combustion efficiency and power retention. Built from hypereutectic alloy and equipped with coated skirts, they provide long-lasting durability, reduced friction, and improved engine performance — whether for stock replacement or mild upgrades.
Compatibility
Compatibility
Vehicle Compatibility:
Chevrolet: Silverado, Suburban, Tahoe, Avalanche, Express (2005–2009 5.3L)
GMC: Sierra, Yukon, Savana
Cadillac: Escalade (select 5.3L models)
Fits Gen IV LS-based Vortec engines with Active Fuel Management (AFM)
For VIN 8th digits: “0”, “3”, “4”, “B”, “J”, “L”, “M”
Designed for floating pin connecting rods
Features
Features
Piston Specifications:
Flat top design for increased compression and cleaner combustion
1.325" Compression Height (CH)
Manufactured from hypereutectic aluminum alloy for improved strength and heat resistance
Graphite/moly-coated skirt for reduced friction and wear during startup
Full-floating wrist pin design (circlips required)
Compatible with standard ring grooves and OEM-style combustion chambers
What’s Included:
Set of 8 flat top pistons
Floating wrist pins included
Designed to fit standard 3.780" bore (oversize options available)
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