Porsche LS Conversions
Turnkey in-house LS builds and complete DIY conversion components. We support full shop installs and builders who want precision-engineered kits.
Explore LS Conversions →
Baltimore, MD · Porsche LS Specialists
Transform Your Porsche With CPE
Chavis Performance & Engineering builds and supports Porsche LS conversions, manual swaps, service, and U.S.-made conversion parts.
It’s not a conversion, it’s a solution.
LS + Porsche
Conversions & Parts
DIY + In-House
Builds & Kits
U.S.A.
CPE Parts Built Here
What We Offer
Our Services
From complete LS conversions to maintenance, manuals, aero, and parts—everything we do is focused on Porsche performance.
Porsche Manual Conversions
Convert your Porsche from automatic to manual or upgrade your gearbox with engineered adapters, fabrication, and expert installation.
Manual Conversions →
Custom Porsche Aero Kits
Custom aerodynamic upgrades—from splitters and wings to full widebody packages—installed with attention to fit, finish, and performance.
Aero Kits →
Porsche LS Conversion Parts
LS swap kits, mounts, harnesses, and components built and sourced to our standards. All CPE Parts Are Made in the U.S.A.
Shop Conversion Parts →Education
What Is a Porsche LS Conversion?
A Porsche LS conversion replaces the factory engine with a GM LS-series V8. At CPE, we engineer every swap so the LS package fits your Porsche’s chassis, cooling, and driveline while improving power, reliability, and serviceability.
Many owners choose an LS swap after dealing with known weaknesses or high rebuild costs on certain original Porsche engines, or simply because they want modern torque, sound, and tuning potential without giving up the Porsche chassis they love.
At CPE, we design and build conversion systems so your car performs on the street and track—whether we install it in our Baltimore-area shop or you assemble it from our DIY components. In-house programs are primarily LS3 or LS7; our kits support Gen 3 and Gen 4 LS engines, and our harness options require a 58x reluctor wheel.
Benefits
Why Convert to an LS?
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Significantly increased horsepower
LS platforms deliver far more output than many factory Porsche engines, with room to grow through cam, intake, exhaust, and tuning.
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Improved reliability
Owners often move to LS power after repeated issues with certain original engines—LS combinations are proven in street and track use.
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Easier maintenance
Parts availability, familiar service procedures, and widespread technician knowledge make long-term ownership more straightforward.
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Strong aftermarket support
From exhaust to ECU tuning, the LS ecosystem offers more options than most legacy Porsche powerplants.
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Overall performance
Better torque, modern drivability, and tunability add up to a driving experience many owners prefer for daily and track use.
Chassis We Support
Supported Porsche Platforms
Porsche 911 (964 / 993)
LS conversions, service, and parts solutions for air-cooled and early water-cooled 911 platforms.
911 / 964 / 993 →
Porsche 986 Boxster
Full LS swap support, maintenance, and conversion components for the first-generation Boxster chassis.
986 Boxster →
Porsche 987 Cayman
LS conversions, service, and engineered parts for Cayman and Boxster 987 models.
987 Cayman & Boxster →
Porsche 996 / 997
Our core focus: 996 and 997 LS packages, in-house builds, DIY kits, and ongoing service.
996 / 997 →Why Porsche Owners Choose CPE
Engineering-first builds, transparent options for DIYers, and parts manufactured in the United States.
- Deep specialization in Porsche LS conversions—not a general shop bolt-on program.
- Both complete in-house builds and DIY conversion solutions from the same engineering team.
- Precision engineering and fabrication tailored to Porsche chassis and packaging.
- All CPE Parts Are Made in the U.S.A.
- A focus on performance, reliability, and craftsmanship in every project.
Featured Build
Featured LS Conversion Package
Our Porsche 996 / 997 LS package centers on LS3 or LS7 in-house builds, professional installation, and a comprehensive conversion system—mounts, cooling, exhaust integration, wiring, and calibration support tailored to your chassis. For DIY customers, our kits support Gen 3/Gen 4 engines and harness compatibility requires 58x.
Starting at $40,000. Final pricing depends on chassis condition, parts selection, transmission choice, and project scope. We’ll quote your build after consultation.
Contact UsLS builds
Our Recent Builds
Our Story
About Chavis Performance & Engineering
Chavis Performance & Engineering was founded by Tyler Chavis after years of hands-on work with Porsche platforms and GM LS engines. The company was built to deliver reliable LS conversion solutions—born from seeing repeated failures and frustration with certain factory powerplants.
Over time, the shop earned a reputation in the Porsche community for high-quality LS conversions and engineered solutions—from complete in-house LS3/LS7 builds to precision parts for DIY installers. Today we’re based in Baltimore, Maryland, supporting owners nationwide.
More About CPEReady to Transform Your Porsche?
Whether you want a full LS conversion built in our shop or conversion parts for your own garage, we’re here to help. Call, email, or send a message—we’ll talk through your goals and next steps.