LS3 Engine Assembly Part 1

Part 1 LS3 Engine Assembly In this video, I take you through the process of assembling an LS3 engine. Whether you’re building your first motor or refreshing a high-performance setup, this step-by-step walkthrough covers the critical stages to help you do it right. From installing the valvetrain, to shimming the oil pump. I break down each step, share tips to avoid common mistakes, and highlight the details that make a difference in reliability and performance. What’s covered in this build: • Block prep and inspection • Camshaft and timing setup • Cylinder heads and valvetrain assembly • Final assembly and checks This LS3 build is aimed at creating a strong, reliable setup whether you're going NA or boosted later on. Take your time, follow proper torque sequences, and always double-check clearances. If you’re into LS builds, performance upgrades, and DIY engine work, hit that like button and subscribe for more content. 0:00 - Intro 0:30 - Pre-soaking Lifters 1:30 - Engine Head Removal 2:15 - Oil Pan Removal 2:35 - Timing Cover Removal 3:30 - Camshaft Install 8:33 - Timing Chain Damper Removal 8:47 - Timing Chain Damper Install 10:02 - Torque Specs 11:54 - Top Dead Center TDC 13:25 - Camshaft Retaining Plate Install 14:15 - Cam Gear and Timing Chain Install 18:07 - Oil Pump Install and Shimming 20:20 - Windage Tray, Pick Up Tube, and Oil Pan Install 25:12 - Lifter and Lifter Tray Install #LS3 #EngineBuild #LSBuild #V8Performance #CarDIY