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Engine Swap Specialists
Ovid, MI

Shipping Available Worldwide  

Industry-Only Lifetime Warranty  

10% Discount for Military & First Responders

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Shipping Available Worldwide  

Industry-Only Lifetime Warranty  

10% Discount for Military & First Responders

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Hero Request Form

Your Trusted Source for Custom Engine Swap Solutions

Since 2016, Swap Specialties has helped automotive enthusiasts turn their project vehicles into reality with custom wiring harnesses and professional tuning services. Based in Ovid, MI, we've earned our reputation by delivering precision-engineered solutions that make engine swaps seamless and reliable. With over 15,000 harnesses crafted and more than 1.35 million horsepower tuned across 36 different platforms, our experience spans 3800, Duramax, Ecotec, Ford, HEMI, LS Gen 3 and 4, and LT Gen V applications.


Whether you're swapping a 3800, Duramax, Ecotec, Ford Coyote or EcoBoost, HEMI, LS Gen 3 or 4, or LT Gen V engine, we have the knowledge and expertise to help keep your project on track. Serving customers worldwide, we proudly deliver our American-made products to automotive enthusiasts across the globe. Our industry-only lifetime warranty provides long-term peace of mind and reflects our commitment to quality craftsmanship. Ready to start your build? Contact us today and let's make it happen.

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Why Choose Us

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Shipping Available Worldwide

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Industry-Only Lifetime Warranty

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10% Discount for Military & First Responders

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Over 15,000 Harnesses Made

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More Than 1.35 million HP Tuned

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25 Years of Experience

3800

The legendary 3800 Series engine needs wiring that matches its reliability. Along with 3800 harnesses and PCMs, we also provide 3800 engine and swap packages and 3800 parts and accessories to help complete your conversion with confidence, delivering clean installations and trouble-free operation.

Duramax

Duramax swaps require specialized knowledge to maximize diesel performance. We offer Duramax harnesses and PCMs and Duramax parts and accessories designed to simplify installation, support dependable operation, and help you get the most from your build.

Ecotec

Modern Ecotec engines deliver impressive power-to-weight ratios for a wide range of project vehicles. We offer Ecotec engine swap packages, harnesses and PCMs, and parts and accessories designed to simplify installation, streamline the conversion process, and support reliable performance.

Ford

Ford powerplants, including the sought-after Coyote and EcoBoost engines, have become popular choices for custom builds. We provide solutions for Coyote and EcoBoost swaps that help streamline installation, simplify wiring requirements, and support reliable performance from start to finish.

HEMI

Modern HEMI engines pack serious punch and remain a popular choice for custom builds. We offer HEMI engine and swap packages, harnesses, and PCMs designed to simplify installation and support reliable performance, helping keep these powerful V8s running strong in their new homes.

LS Gen 4

LS Gen 4 components from Swap Specialties are designed to simplify engine swaps and maximize reliability. From custom harnesses and programmed PCMs to complete swap packages and accessories, we provide proven solutions backed by industry experience, worldwide shipping, and our industry-only lifetime warranty.

LT Gen V

The latest Gen V LT engines bring advanced technology and impressive performance to modern engine swaps. We offer LT Gen V engine packages, harnesses and PCMs, and parts and accessories designed to simplify installation and support reliable operation across a wide range of applications.

Coyote 5 Engine Swap Packages

Upgrade your build with a custom Coyote 5.0 engine swap package from Swap Specialties in Ovid, MI. Designed for reliability, performance, and simplified installation, our solutions help streamline your project with quality components, expert support, and proven swap experience. Worldwide shipping is available for builders everywhere.

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Here's what our satisfied customers are saying...

At Swap Specialties, we take pride in providing exceptional auto parts and accessories to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Swap Specialties and let others know what you think.