LS & LT Dyno Tuning Arkansas | MorrSpeed Dyno & Performance

LS · LSX · LT Expertise

We Speak LS.

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HP Tuners & EFI Live

Industry-standard GM tuning platforms. Custom OS tunes, MAF calibration, VVT optimization, and flex-fuel strategies — dialed in on the dyno, not guessed at on the street.
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Cam / Head / Intake Builds

Cam swap, head work, or a big cubic inch build? Those need a proper custom tune. We put your combo on the rollers and build the tune around what your engine actually needs.
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Forced Induction — Turbo & Supercharger

Boosted LS/LT setups need proper boost curves, timing pulls, and safe AFR targets. Centrifugal, roots, twin-screw, turbo — including E85 flex-fuel tunes for max safe power.
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LS Swaps

Dropped an LS into something it didn't come from the factory in? We'll dial in the tune, sort drivability, and make it run like it was born there.
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LT1/LT4 Direct Injection Tuning

Gen V LT has its own quirks with DI, VVT, and AFM/DFM. We know the platform — from a mild LT1 street tune to a full-pull supercharged LT4 race build.

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.

Package 01

Dyno Sheet

$300

3 pulls · gas or diesel · no tuning

3 full-throttle dyno pulls
HP & torque curve graphs
Peak RWHP & RWTQ numbers
Wideband air/fuel ratio data
Printed & digital dyno sheet
Perfect before/after comparison
Gas or diesel welcome

Book This Session

N/A Dyno Tune

$750 starting

Naturally aspirated · HP Tuners platform

Full custom ECU tune on the dyno
HP Tuners — credits vary by year & vehicle
AFR, timing & VVT optimization
Cam, heads & intake builds welcome
Multiple pull rounds to dial in
Before & after dyno sheets included
+ $250 dual fuel — pump gas & E85 flex tune

Book This Session

Package 03

Power Adder Tune

$1,250 starting

Turbo · Supercharger · Nitrous

Full load-bearing tune under boost/spray
Boost curve, timing & wastegate tuning
Safe AFR targets across the full pull
HP Tuners platform · credits vary by vehicle
Extended dyno time for complex builds
Before & after dyno sheets included
+ $250 dual fuel — pump gas & E85 flex tune

Book This Session

All prices are starting points. Final cost depends on vehicle year, make, and HP Tuners credit requirements. Complex builds, additional pull sessions, and standalone ECU setups may affect pricing. Contact Brayden to discuss your specific combo before booking.

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

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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

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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

Recent Fab Work

View Full Fab Gallery →

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.

MorrSpeed

Dyno & Performance

Gen III Small Block

Gen IV LS Platform

High-Perf & Race Block

Gen V LT Platform

Built on Grit.Tuned for Power.

Your Ozarks LS Shop

We Speak LS.

HP Tuners & EFI Live

Cam / Head / Intake Builds

Forced Induction — Turbo & Supercharger

LS Swaps

LT1/LT4 Direct Injection Tuning

LS1 / LS6

LS2 / LS3

LS7 / LSX

LT1 / LT4

Vortec Truck

LS Swap Anything

Know Your Numbers.

DynoCom Chassis Dynamometer

Dyno Sheet

N/A Dyno Tune

Power Adder Tune

Featured Builds

No Featured Builds Yet

Custom Fabrication

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

Hot Side Piping

Cold Side Piping

Custom Headers

Back Halfs, Front Halfs & Full Tube Chassis

Wheel Tubs & Tubbing

Roll Cages

What We Do

LS/LT Dyno Tuning

Performance Builds

LS Swap Tuning

HP Verification Pulls

Custom Fabrication

Diesel Performance Upgrades

Diesel Repair & Maintenance

Book the Dyno

Serving North Arkansas& Southern Missouri

Built on Grit.
Tuned for Power.

Serving North Arkansas
& Southern Missouri