CP Pistons Chevy LS 5.3L Flat Top Pistons 3.799 Bore - BLS1013-019

Build or refresh your Chevy LS 5.3L engine with CP Pistons BLS1013-019 forged flat top pistons designed for stock 5.3L LS applications. Featuring a 3.799-inch bore, -3.5cc valve reliefs, and a 1.300-inch compression height, these pistons are engineered to deliver proper compression balance, strong durability, and reliable performance in street and performance builds.

Manufactured from premium forged aluminum, CP Pistons provide excellent strength, thermal stability, and precise machining for high-mileage replacements or upgraded LS builds. Ideal for naturally aspirated or mild forced-induction setups, the BLS1013-019 piston set offers consistent compression, dependable power handling, and long-term reliability trusted by LS engine builders.