LS

★ Timbo, Arkansas · DynoCom Precision Tuning ★

MorrSpeed

Dyno & Performance

LS · LSX · LT · + GM Platforms
⚙

Arkansas's home for LS, LSX & LT GM platform tuning on a state-of-the-art DynoCom chassis dyno. Hot rods, muscle cars, trucks, swaps — if it's got a GM V8, we know how to wake it up.

📍 9776 Highway 66, Timbo, AR  ·  (870) 746-4714

Book Your Dyno Session LS Tuning Info
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LS1/LS6

Gen III Small Block

The original modern LS. Iron or aluminum block. Launched the muscle car revival.

5.3L5.7L6.0LVortec
LS2/LS3

Gen IV LS Platform

Bigger displacement, more potential. C6, Camaro SS, G8, trucks.

6.0L6.2LL92L99
LS7/LSX

High-Perf & Race Block

505hp factory Z06 mill or purpose-built iron race block. No limits.

7.0LZ06LSX454LSX376
LT1/LT4

Gen V LT Platform

Direct injection, VVT, serious factory power. C7/C8 Vette, 6th-gen Camaro.

6.2LLT1LT4 SCLT2

Who We Are

Built on Grit.
Tuned for Power.

Your Ozarks LS Shop

MorrSpeed Dyno & Performance is based out of Timbo, Arkansas, and we've brought serious, precision tuning capability to the hills. Our specialty is LS, LSX, and LT GM platform vehicles — the engines that built the modern muscle car era and power half the hot rods and swaps in the country.

We've invested in a state-of-the-art DynoCom chassis dyno because guessing isn't tuning. Whether you're running a stock LS3 you want to unlock, a built 427 on nitrous, or a truck swap with a cam and heads — the dyno tells the truth and the tune makes it right.

We also handle diesel vehicles — performance upgrades, repairs, and dyno pulls to show you the gains. But the LS/LT family is our bread and butter. Brayden Morrison and the MorrSpeed crew do it right.

LS
LSX
LT
Primary Focus
2K+
HP Dyno Capacity
Gas
&
Diesel
We Dyno Both

LS · LSX · LT Expertise

We Speak LS.

From the original LS1 in a '98 Firebird to the latest supercharged LT4, the GM V8 family is one of the most tuneable, swappable, buildable engines ever made. Here's what we work with:

LS1 / LS6

The Gen III original. 5.7L aluminum block that launched the modern muscle era.

F-body · C5 Vette · GTO · Trucks

LS2 / LS3

6.0L and 6.2L Gen IV — more cubes, more potential out of the box.

C6 Vette · Camaro SS · G8 · SSV

LS7 / LSX

505hp factory or a purpose-built iron race block. No factory limits apply.

Z06 · Road Racing · Strip Builds

LT1 / LT4

Gen V DI V8. 455–650hp stock. Much more with a real tune.

C7/C8 Vette · 6th Camaro · CT5-V

Vortec Truck

5.3L, 6.0L, 6.2L truck/SUV LS variants. Massive swap popularity and tune potential.

Silverado · Tahoe · Suburban · Yukon

LS Swap Anything

Any car, any chassis. The LS goes anywhere — we tune it wherever it lands.

Classics · Imports · Hot Rods · Customs

DynoCom Chassis Dyno

Know Your Numbers.

State-of-the-Art Equipment

DynoCom Chassis Dynamometer

Our load-controlled DynoCom dyno handles over 2,000 horsepower and delivers accurate, repeatable data across the full RPM band. Horsepower, torque, boost, wideband AFR, and timing pull data — everything you need to tune your LS, LT, or diesel precisely. Real numbers from real equipment.

Equipment
DynoCom
Load-Controlled
Chassis Dyno
2,000+ HP Rated

Package 01

Baseline Pulls

$150

3 pulls · gas or diesel

  • 3 full-throttle dyno pulls
  • HP & torque curve graphs (PDF)
  • Peak HP & torque numbers
  • Wideband air/fuel ratio data
  • Great for before/after comparisons
  • Diesel dyno verification available
Book This Session
Most Popular

Package 02

Custom LS/LT Dyno Tune

$500–$800

Full session · varies by build

  • HP Tuners or EFI Live platform
  • Custom ECU remap / full tune
  • AFR, timing & VVT optimization
  • Multiple pull rounds to dial in
  • Before & after dyno sheets
  • Cam, heads, intake builds welcome
  • E85 / flex-fuel strategies available
Book This Session

Package 03

Boosted & Race Builds

$900+

Call for custom quote

  • Turbo, supercharger & nitrous capable
  • Extended dyno session time
  • Full data-logging package
  • LSX & high-HP race builds welcome
  • E85 & race fuel tuning
  • Track support available
Get a Quote

Pricing based on industry averages for DynoCom load-controlled chassis dyno sessions. Forced induction, nitrous, complex builds, and diesel trucks may vary. Contact us for an exact quote. All sessions include dyno sheets.

Fresh Off the Dyno

Featured Builds

Photo Coming Soon
⚡ Dyno Verified
LS Swap

1969 Chevy Nova

LS3 6.2L · Cam · Heads · Long Tube Headers

Classic A-body shell with a full LS3 swap. Cam, ported heads, long tube headers, and a custom tune on the DynoCom. Streetable daily that leaves nothing at the light.

487 RWHP
462 RWTQ
E85 Fuel
Photo Coming Soon
⚡ Dyno Verified
Truck Build

2015 Silverado 1500

L86 6.2L · Stage 2 Cam · Intake · Custom Tune

Stock bottom end L86 with a stage 2 cam, cold air intake, and headers. AFM deleted, custom tune on pump 93. Pulls hard from idle — exactly what a truck should feel like.

412 RWHP
438 RWTQ
93 Fuel
Photo Coming Soon
⚡ Dyno Verified
Boosted

2012 Camaro SS

LS3 · Procharger D1SC · E85 Flex Tune

Bolt-on Procharger on a stock bottom end LS3. Full flex-fuel tune on E85 with aggressive timing and a safe boost curve. This car is a handful on the street — in the best way.

618 RWHP
541 RWTQ
E85 Fuel
Photo Coming Soon
🔧 In Progress
LT Build

2017 Camaro ZL1

LT4 6.2L Supercharged · Pulley · Tune

LT4 ZL1 in for a smaller pulley, catch can setup, and full custom tune. Gen V LT4 with the factory blower making the most of every psi. Numbers drop soon.

— RWHP
— RWTQ
93 Fuel
Photo Coming Soon
⚡ Dyno Verified
Hot Rod

1955 Chevy Bel Air

LSX 454 · Carb Conversion · Custom Tune

Old-school body meets modern power. LSX 454 big block swap with a carbureted throttle body conversion. MSD ignition, custom headers, and a tune to match. Exactly the kind of build we live for.

571 RWHP
594 RWTQ
93 Fuel
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Your Build
Goes Here

Got a build that came through MorrSpeed? We want to feature it. Reach out with your car info and dyno sheet and we'll add it to the wall.

Get On the Dyno →

Metal, Heat & TIG Wire

Custom Fabrication

We Don't Just Tune 'Em — We Build 'Em Too.

MorrSpeed isn't just a dyno shop. When it comes to custom metalwork, we do it all — from mandrel-bent turbo piping and intercooler systems to full-on chassis fabrication that turns a street car into a purpose-built race machine. If it involves a welder, a tube bender, and some know-how, we're in.

Every piece we build is mocked up on the car, fitted by hand, and TIG welded for clean, strong results. No off-the-shelf kits pieced together and called "custom." We start from scratch, we do it right, and we put it on the dyno when we're done.

TIG Welding MIG Welding Mandrel Bending Stainless · Mild Steel · Aluminum One-Off Builds
Hot Side Piping
Cold Side Piping
Full Chassis Work
One Off Fabrication
Turbo System Fabrication
🔴

Hot Side Piping

Exhaust Side · Pre-Intercooler

The hot side is everything from your exhaust manifold through the turbine housing and out to the intercooler inlet. We fabricate custom up-pipes, crossover pipes, and downpipes in stainless steel or mild steel — mandrel bent for smooth flow, TIG welded for strength, and fitted specifically to your engine bay. No generic kits. Your turbo, your car, your routing.

Stainless Up-Pipes Turbo Flanges Wastegate Placement Downpipes V-Band Connections
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Cold Side Piping

Charge Side · Post-Intercooler

Once the air exits the intercooler, it needs to get to the throttle body efficiently — without pressure drop, without heat soak, and without leaks. We build custom cold-side charge pipes in mandrel-bent aluminum that flow more air than any stock or off-the-shelf pipe, with proper silicone boot placement and bung locations for your BOV, MAP sensor, and IAT wherever they need to go.

Mandrel Aluminum BOV Flanges MAP/IAT Bungs TMIC & FMIC Routing Silicone Coupler Fit
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Custom Headers

LS · LT · GM Platforms

Headers are one of the highest-impact bolt-ons you can put on an LS or LT — and a custom-fabbed set takes it even further. We build one-off long tube and mid-length headers designed around your specific combination: your cam profile, your chassis clearance, your exhaust routing. Equal-length primaries, proper collector sizing, and TIG-welded flanges that won't warp and won't leak.

Long Tube Mid-Length Equal Length Primaries LS Swap Fitment Collector Sizing
Chassis & Structural Fabrication
Full Chassis Builds & Conversions

Back Halfs, Front Halfs & Full Tube Chassis

When the factory frame has hit its limit — or you're building something that was never meant to run the numbers you're chasing — it's time for real chassis work. A back-half conversion replaces the entire rear subframe with a purpose-built tubular structure: new frame rails, four-link or ladder-bar suspension, narrowed rear housing, and wheel tubs sized for whatever slick you're planning to hang out back. It's the foundation every serious drag build starts with.

Front halfs take care of the nose — new frame rails forward of the firewall, tubular control arms, and the structural work needed to run a proper front suspension setup on a dedicated race car. Combined with a back half, you've got a full tube chassis conversion that's built around your car's body shell, not just bolted under it.

  • Back Half Conversions — Full rear subframe replacement, 4-link or ladder bar, coilover mounts, driveshaft loop, and all the structural boxing needed for high-horsepower launches
  • Front Half Conversions — New frame rails forward of the firewall, tubular A-arm mounts, and custom crossmembers for racing front suspension setups
  • Wheel Tubs / Tubbing — Custom sheet metal wheel tubs to clear large drag slicks — built to fit your specific tire and wheel combo, welded clean, and finished to match the floor
  • Roll Cages — 8-point, 10-point, and full funny car cages for street or strip. Built to NHRA spec guidelines in mild steel or 4130 chromoly depending on your class requirements
  • Subframe Connectors & Chassis Stiffening — Weld-in subframe connectors, torque boxes, and boxing kits that tighten up a unibody chassis before you build any real power into it
  • Custom Crossmembers & Motor Mounts — Swap-specific crossmembers and engine/trans mounts for LS and LT conversions into any chassis
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Wheel Tubs & Tubbing

Make Room for Real Rubber

Running a serious drag tire means the factory wheel wells have to go. Wheel tubs — also called tubbing — replace the stamped factory inner fender with custom sheet metal half-moons that tuck up tight to the frame rails, giving you the clearance to run a 28", 29", or 315 slick without hammering the quarter panel. We build them to fit your specific tire and wheel combination, weld them in smooth, and finish the floor transition clean. The result is a tub job that looks like it came from the factory — just a very different factory.

Custom Sheet Metal Drag Slick Fitment Floor Transition Any Body Style
🏗️

Roll Cages

Built for the Strip · Built for Safety

A roll cage isn't just a safety requirement — it's the single biggest thing you can do for chassis stiffness. A properly built cage ties the front and rear of the car together into one rigid structure, which means more consistent launches, less chassis flex, and better ET's on top of the obvious protection it provides. We build 6-point, 8-point, and full 10-point cages, along with Funny Car-style configurations for cars pushing into the 8s and quicker. Mild steel and 4130 chromoly available — built to your class's rulebook.

6, 8 & 10-Point Funny Car Cage 4130 Chromoly Mild Steel NHRA-Spec Aware

Every fabrication job starts with a conversation. Tell us what you're building, what you're running, and what you need to fit — and we'll figure out the best approach. No cookie-cutter quotes. Call Brayden directly or fill out the booking form and describe your project.

Discuss Your Build

Full-Service Shop

What We Do

Gas · Primary 💻

LS/LT Dyno Tuning

Full custom ECU tunes on the DynoCom dyno using HP Tuners & EFI Live. NA, boosted, cam builds, and swaps — if it's a GM V8, we tune it right.

Gas · Primary 🔧

Performance Builds

Cam swaps, head work, intake upgrades, forced induction installs, and long block builds. LS/LT platform specialty from mild street to full race.

Gas · Primary 🔄

LS Swap Tuning

Dropped an LS into a classic, a truck, or something creative? We'll dial in the tune, sort any drivability issues, and make it run clean and hard.

Gas · Primary 📊

HP Verification Pulls

See what your build actually makes. Baseline pulls with full HP, torque, and AFR data — essential before and after any major modification.

Fabrication 🔩

Custom Fabrication

Hot sides, cold sides, headers, back halfs, wheel tubs, and roll cages. One-off metalwork, built right the first time. See full fab services →

Diesel · Available 🛢️

Diesel Performance Upgrades

Diesel performance mods, injector upgrades, turbos, and lift pumps. We can dyno before and after to put real numbers behind your build.

Diesel · Available 🛠️

Diesel Repair & Maintenance

Light-duty diesel diagnosis and repair. We'll keep your truck running right — the dyno's there to verify your power numbers whenever you want them.

Schedule Your Session

Book the Dyno

Ready to find out what your LS, LT, or other build really makes? Fill out the form below and Brayden will reach out to confirm your slot and talk through your combo before the session.

Want to talk shop before you book? Give Brayden a call or shoot an email.

📞 (870) 746-4714 ✉️ [email protected] 📍 9776 Hwy 66, Timbo AR
✔ Request sent! Brayden will be in touch to talk about your build.