632 Big Block Chevy

When you need nothing short of extreme power for your boat, the 632 Big Block Chevy Airboat engine is the hot ticket. With hundreds of hours in development under our belt, Prestige Motorsports has turned the prop on the airboat market in a powerful way. This engine has to be experienced in order to appreciate the optimized torque curve. Everything available from a short block to long block, turn-key carbureted or EFI and drop-in-ready with your pulley kit of choice. Turn-Key & Drop-In-Ready engine packages come dyno tested and every engine package is personalized for you & tailored to your airboat.

What engine package works best for you?

<h3><strong>489ci Airboat Engine</strong></h3>
<p>The 489ci Big Block Chevy is a 454-based stroker built on an OEM block and tailored for airboat use. It features upgraded internals and a torque curve optimized from 2,500 to 5,550 RPM, delivering responsive, efficient power where it matters most. Ideal for lighter airboats or those looking for a reliable, budget-friendly option with strong low-end performance.</p>

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<h3><strong>582ci Airboat Engine</strong></h3>
<p>The 582ci Big Block Chevy steps up the game with more displacement and airflow. Built on a 454-based platform, it delivers significantly more torque and top-end power than the 489, while still maintaining excellent throttle response. This engine is a great fit for mid-to-heavy airboats that need more punch without going to a tall-deck block.</p>

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<h3><strong>632ci Airboat Engine</strong></h3>
<p>The 632ci Big Block Chevy is the top-tier choice for serious airboaters. Built on a 10.2″ tall-deck aftermarket block and equipped with CNC-ported heads, it delivers extreme torque and high-output performance. Designed through extensive real-world testing, this engine dominates in demanding conditions and is ideal for large, high-performance airboats that need maximum thrust and reliability.</p>

Long Block vs.Turn-Key vs. Drop-In-Ready

Everything available from a short block to long block, turn-key carbureted or EFI and drop-in-ready with your pulley kit of choice. Turn-Key & Drop-In-Ready engine packages come dyno tested and every engine package is personalized-for-you & tailored to your ride.

Ultimate Turn-Key Package

Blow away the boundaries and eliminate all excuses. The Ultimate Turn-Key Package from Prestige Motorsports delivers everything you need to bring the vehicle of your dreams to life.

This comprehensive package combines all our most popular turn-key performance packages – engine upgrade, fuel supply, cooling system, and transmission – into a single crate. Only Prestige has the experience and resources to give you total peace of mind when it comes to a performance-driven, whole-vehicle build. Every Ultimate Turn-Key Package is a soup-to-nuts array of hand-picked components, all dyno tested and combined in the pursuit of the goals you set for your car.

Installation Services

We install engines too! Prestige Motorsports offers engine installation services and much more. When you invest in aftermarket performance parts, the success of your upgrade hinges on their proper installation. Too often, car enthusiasts buy into an upgrade or kit car only to get stuck when the build or install requires expensive tools or job-shop-type work. For this reason, Prestige Motorsports not only offers expert advice on performance auto parts and aftermarket upgrades; we also provide professional parts installation and upgrade services for all early and late model vehicles. To access our precision installation for everything from crate engines to rear-end upgrades, customers ship cars from across the country to Prestige.

Special Offers

Ultimate TurnKey Package

The Ultimate Turnkey Package covers every consideration and saves you money with a volume discount and a one-time shipping cost.

Testimonials

 5/5

Having approached a few local builders I quickly learned that nobody I approached offered warranty of any significance on rebuilt performance engines, but every single builder would do the work had I proceeded for a significant cost to me, all the risk being mine.

In 2011 I was looking for a local engine builder down here in Australia to rebuild my old modified 302 cu in engine. What I wanted was my original Windsor block rebuilt with all new rotating parts and the heads either changed out for Alloy or modified to seek more power. I also wanted to understand the warranty such engine builders would offer. I also wanted good horsepower and torque.

I was looking for a Ford 351W engine to fit in a GT40 replica and came across Prestige Motor Sports on the internet. After reviewing other engine builders in the UK and overseas it was apparent that Prestige gave better value for money and had a reputation for quality. Doug Aitken was extremely helpful and always responded quickly to my emails and requests for information. I got what I wanted, on time, on budget and with no surprises. After my engine arrived Doug was helpful as ever when I was looking for compatible, parts, oils, etc. in the UK. My only regret is that I shipped the engine myself and it took forever; despite Doug's efforts to deal with my shipper. I should have let Prestige handle that too. I can thoroughly recommend Prestige Motorsports.

Prestige Motorsports did a GREAT job on my 1932 Ford Truck. From the custom paint job to the extras that make the truck stand-out...expert and custom work all around. They stayed true to the price estimates that I was given and continued to be professional throughout my experience. I would highly recommend them for all of your custom car/truck needs.

These guys are great very friendly. They built a big block chevy for me and it runs great. They helped me any time I called them with questions on the installation of the engine. They are always willing to take as much time as needed to help you get through any problems you may have. I will definitely purchase my next engine from them.

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