489 Big Block Chevy

Our 489 Big Block Marine Engine is far different than a basic Chevy crate engine. The 454 based stroker engine is designed with a host of upgraded internals specific to marine use to provide maximum torque from 2,500 to 5,550 RPM, right where you need it on a boat. Get on plane quicker and sustain a lower RPM Cruising speeds. 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 boat.

What engine package works best for you?

489ci Marine Engine

The 489ci Big Block Chevy is a 454-based stroker built on an OEM block, specifically upgraded for marine use. The broad torque curve from 2,500 to 5,550 RPM delivers responsive power that gets you on plane fast, making it perfect for quick takeoffs and agile performance on the water. This engine is a great fit for recreational marine builds that need reliable, efficient torque without the need for extensive modifications.

565ci Marine Engine

Our most popular marine engine, the 565ci Big Block Chevy is built on a high-strength aftermarket 9.8″ short-deck block. Designed for the offshore marine industry, it features premium internals and has been refined through hundreds of hours of dyno and marine testing. The result is a torque curve that outperforms the competition, making it the go-to choice for serious marine enthusiasts who want proven power and durability.

632ci Marine Engine

The 632ci Big Block Chevy Marine engine is built on a 10.2″ tall-deck aftermarket block and topped with CNC-ported heads for maximum airflow and performance. Developed through extensive testing, it delivers massive torque and unmatched thrust, especially in marine applications. This engine is built for those who demand extreme displacement, serious power, and a commanding presence on the water.

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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