GM TRUCK PERFORMANCE, WITHOUT THE GUESSWORK

BUILD IT.
TUNE IT.
DRIVE IT HARD.

Practical LS/LT truck tech for people who actually turn the wrenches—engine swaps, 6L80/4L80 setup, gearing, tire math, HP Tuners strategy, track data and real-world builds.

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LS / LTEngines
6L80 / 4L80Transmissions
HP TUNERSCalibration
FEATURED BUILD
GMT900 / N.A. STREET6.0L • CAM • 243s • 6L80 • 4.10
FROM THE TUNING LAB
WOT SHIFT REVIEWRPM • SLIP • SPARK • EQ • KR
SHOP TALK
WHAT CONVERTER FOR A CAMMED 6.0 / 6L80?18 replies33s + 4.10s: REAL HIGHWAY RPM23 repliesMY FIRST CLEAN HPT WOT LOG31 replies
THE GARAGEREAL BUILDS. REAL DATA. REAL ANSWERS.
EST. 2026
LS TRUCK LABS
LS SWAPS • CAM SELECTION • 6L80 TUNING • 4L80 SWAPS • GEARING • TIRE SIZE • HP TUNERS • DYNO DATA • TRACK TIMES • STREET BUILDS

THE LAB

Featured Tech

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ENGINE TECH

LS ENGINE BASICS • 8 MIN READ

Cam, Heads, Intake: Where the Power Actually Comes From

Learn how airflow, compression, cam timing and rpm range work together before you spend money on mismatched parts.

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6L

TRANSMISSION

6L80 Shift Strategy: RPM, Speed & Torque Management

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λ

TUNING

Reading a Datalog Without Chasing the Wrong Number

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4.10

DRIVETRAIN

Gear Ratio vs. Tire Size: What Changes at the Ground

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REAL TRUCKS. REAL COMBOS.

Build Garage

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FEATURED
01

STREET / N.A.

6.0L Cammed GMT900

LY6 • 243 HEADS • LONG-TUBES • 6L80 • 4.10s
SWAP
02

SWAP / WORKHORSE

Classic Squarebody LS Swap

5.3 / 6.0 • 4L80E • EFI • MODERN DRIVEABILITY
BOOST
T
03

BOOST / STREET

Budget Turbo Truck Formula

FUEL • SPARK • BOOST CONTROL • TRANSMISSION SURVIVAL
RPMLOAD
COMMANDRead the Log Before You Touch the TuneRPM • converter slip • spark • EQ • knock — the channels that tell the story.ACTIVE
WATCHKR / EQ / SPARK / SLIPLOG
GOALCONSISTENCYVERIFY

HP TUNERS & DATA

Tune With Evidence,
Not Internet Folklore.

Good calibration starts with a mechanically sound truck, clean logs and one change at a time. LS Truck Labs will organize tuning information around the data you can actually verify.

✓ Scanner channel lists✓ Datalog review workflow✓ Shift scheduling✓ Converter strategy✓ Fuel & spark basics✓ Change tracking
Enter Tuning Lab

GARAGE CALCULATORS

Do the Math Before You Buy Parts.

Quick tools built around the questions truck owners actually ask.

THE GARAGE

Part Magazine.
Part Shop Talk.

Build threads, tuning discussions, parts feedback, troubleshooting and hard-earned lessons—organized so useful answers don’t disappear in a social-media feed.

Explore Community
Latest Garage ThreadsLIVE PREVIEW
6.0
Best converter match for a cammed 6.0 / 6L80?Drivetrain • 18 replies • 12m ago
HPT
What channels are you logging for WOT shift review?Tuning • 27 replies • 34m ago
OBS
Squarebody LS swap: fuel system lessons learnedBuild Threads • 41 replies • 1h ago
4.10
33s, 4.10 gears and highway RPM—real numbersGearing • 23 replies • 2h ago
SOURCE-BACKED TECH

Numbers You Can Trace Back To The Source.

Our technical guides now include published GM specifications, HP Tuners documentation, fuel-system engineering references and real vendor test data — with source links at the bottom of each article.

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ONE-STOP REFERENCE

Know The Combination, Not Just The Part Number.

Engine RPOs, bore and stroke, cylinder-head families, camshaft terminology and transmission ratios now live in dedicated master-reference guides.

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