🚗 Engine Swaps & Tech
Dedicated to all engine swap projects and custom conversions across the W-body platform. Whether you're doing a factory upgrade, building a hybrid V6/V8 combo, or tackling a full custom transplant, this is your space. Discuss wiring, mounts, tuning, sensors, and transmission compatibility. Share build logs, troubleshooting tips, and part lists to help others take the leap.
Engine Swaps New
Document your engine swap projects—whether it’s a factory upgrade, hybrid build, or full custom transplant. Includes FWD V6/V8 conversions, cross-platform swaps, and wiring, mounts, tuning, and transmission compatibility discussions. Share photos, build logs, part lists, and ask for help troubleshooting your setup.
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Valvetrain New
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60° V6 Family (Gen I/II) New
Covers the early 60° V6 lineup including the 2.8L, 3.1L (LG5, LHO), and 3.4L DOHC LQ1. Commonly found in Gen 1 W-body and earlier GM FWD platforms.
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3400/3500 Family New
Discussion for the 3100 (L82/LG8), 3400 (LA1), and 3500 (LX9/LZE/LZ4) V6 engines used in later Gen 1.5 and Gen 2 W-bodies. Top swaps, hybrid builds, and tuning welcome.
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3900 Family New
Covers the 3.9L LZ9, LZG, and LGD V6 engines found in later W-body and G/H platform vehicles. Includes VVT tuning, reliability topics, and swap compatibility.
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3800/3300 Series New
The iconic 3300 and 3800 Series I, II, and III (L36, L67, L26, L32). Covers N/A and supercharged builds, tuning, upgrades, and engine swaps.
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Inline Engines New
Legacy 4-cylinder engines including the 2.2L LN2 and 2.5L Iron Duke. Covers maintenance, performance mods, and compatibility in compact GM vehicles.
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V8 Family New
High-power options including the 5.3L LS4 and 4.6L Northstar V8. Discuss swaps, tuning, drivetrain upgrades, and related W-body challenges.
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