How Long Does an EV Conversion Take? Timeline Breakdown by Vehicle Type

You’re probably sitting there, coffee in hand, scrolling through some badass EV conversions online and dreaming of your future. Maybe your ride’s a weekend cruiser or a daily driver… either way, you’re probably wondering: “If I do this, how long would it actually take?” And hey, you’re smart to ask. Because converting your beloved gas-guzzler to electric isn’t exactly like swapping the batteries in a flashlight.

I get it. You’ve seen those flashy YouTube videos where a conversion seems to happen faster than a quick oil change. We’ve seen them too. That’s the downfall of content these days. In reality, the actual EV conversion timeline involves a bit more than a weekend crunch-fest—but it’s manageable, predictable, and absolutely worth it.

Let’s walk through a realistic breakdown of EV conversion phases and timelines, from a DIY to a pro-level shop build.

How Long Does EV Conversion Take? The Realistic Breakdown

Here’s the good news upfront: a typical professional EV conversion can be completed in roughly 3-6 months depending, sometime. DIY conversions, however, depend largely on your skills, tools, availability, and caffeine intake. On average, expect your garage project to take anywhere from 8 months to a year.

But let’s dive deeper. Here’s how that time actually breaks down:

Phase 1: Planning & Design (4-6 Weeks)

This is the dreaming and scheming stage. You’re researching components, estimating your EV conversion cost, and mapping out your build strategy. Here you’ll need to consider your vehicle’s weight, available space, desired range, performance goals, and budget.

Pro tip? Don’t rush this part. Making a thoughtful plan now saves weeks (and a few curse words) later and you can even do this with us!

Phase 2: Teardown & Prep (1–2 Weeks)

Here’s where things get hands-on. Your old engine, fuel tank, exhaust—basically everything that made your vehicle run on carbon juice—has gotta go. And while tearing stuff apart is fun, it can get tricky with older vehicles. Rusted bolts, hidden wiring, and unexpected issues can pop up, so plan accordingly.

Fun fact: Many pro shops, like Flashdrive and other Fuel2Electric partners, have teardown down to a science, often completing this stage in a matter of days. But if it’s your first time, give yourself extra breathing room.

Phase 3: Component Installation & Assembly (10-20 Weeks)

This is the heart of the conversion. Batteries, motors, controllers, wiring harnesses, BMS (Battery Management System)—all come together here. DIY builds usually stretch this part out because you’re probably juggling a day job, family life, and episodes of your favorite show.

But professional shops have specialized tools, workflows, and experienced teams—so what might take you months can often be done in a matter of weeks. With drop-in kits, some conversions can be wrapped up in as little as a week. For custom builds, though, it really depends on parts availability and how well components and wiring can be integrated within the vehicle’s space constraints. According to Electric GT and other seasoned converters, most builds fall within the 3–6 week range, assuming no major delays.

Phase 4: Testing & Troubleshooting (4-6 Weeks)

This is where your project goes from stationary sculpture to actual driving vehicle. But before you hit the road, it’s all about testing, tuning, and retesting. You’re checking wiring, software integration, brake regen settings—basically, making sure your EV performs at its optimal state according to you, your driving style, and your usage.

Professional conversions usually have an edge here too, thanks to experience and specialized equipment. If you’re going DIY, be patient, have a friend on speed dial, and maybe stock up on your beverage of choice.

Phase 5: Insurance & Road-Ready (1 Week)

Now, your converted EV has to pass inspections or certifications depending on your state or country. This stage isn’t lengthy, but it’s critical. Make sure to research your local laws beforehand, so this step isn’t a nasty surprise. You’ll also need to insure your newly electric ride, which can be its own process—especially if your carrier isn’t familiar with conversions. We broke that down in this blog about registering and insuring your EV conversion.

EV Conversion Cost: How Timing Impacts Your Budget

Now, why should you care about timing beyond just wanting your car done ASAP? Time is money, especially in EV conversions.

A longer timeline often means increased labor costs (if you’re hiring a shop), more downtime, and potentially more rental-car or transportation costs if your conversion vehicle is your daily driver. Professional conversions generally save you money on labor due to efficiency—though you’ll pay more upfront.

DIY vs. Professional Conversion: Time & Cost Trade-offs

DIY builds: DIYing stuff is awesome, but everyone knows it takes time.Expect lower immediate costs but longer timelines. Much longer. Your garage, your rules. But factor in the value of your time.

Professional builds: Higher upfront EV conversion costs, but the rapid turnaround means you get back to cruising sooner. And you get a warranty too.

The Record-Breaking Conversion Timeline

Feeling competitive? Here’s inspiration: The Electric GT team famously completed an electric conversion of a Ferrari 308 GTE in under two weeks for a popular TV show. Yep—two weeks from gas engine to fully electric beast. While not typical, it does prove that speed is possible… with enough coffee and an experienced team.

Your EV Conversion Timeline, Your Way

Bottom line: The EV conversion timeline depends heavily on your approach, skills, resources, and how many late-night garage sessions you’re willing to endure. But knowing what to realistically expect makes the journey far less daunting.

So whether you’re a weekend warrior determined to DIY, or ready to drop your beloved classic at a pro shop, you now have a realistic timeline.

Because your EV conversion dream deserves a clear road ahead—and cruising down the road in your custom electric build is worth every second.