Custom Built Stock, Performance, and Race engines

Custom Crate Engines by Proformance Unlimited is one of the leaders in the muscle car industry. We build all kinds of hot rods engines that will suit the needs of nearly every car enthusiast. Our dedication to detail in our engine build separates us from the rest. Check out our reviews and take a look at some of our YouTube videos. You will spend hours watching them. All of our crate engines are hand assembled one at a time using only the finest parts available. Every one of our complete turn-key crate engines we build are dyno tested to ensure durability and power output. With these standards we can assure you that you will receive a 100% perfect engine that will stand up to the test of time. People choose to have a crate engine built by us over building their own since we can customize the engine to your desired spec’s and it’s assembled by our highly experienced staff. So the day’s of back and forth trips to the machine shops, trial and errors and expensive mistakes are a thing of the past.


Chevy Crate Engines


Ford Crate Engines


Chrysler Crate Engines


Oldsmobile Crate Engines


Cobra Crate Engines


Pontiac Crate Engines

I would like to take this opportunity to thank you for your interest in Custom Crate Engines and introduce you to our company. As you can see from our photos and videos each engine is built to precision with much pride and care. There is a lot more in technical design than just picking out parts. With so many companies out on the web today to chose from, it’s hard to make a decision. Some may talk a good game and present themselves well, but can they really deliver your dream engine. This statement reminds me of a quote i heard once “Those who can, do. Those who can't, teach”. We dyno test literary 100’s of engine combinations each year and with our skills and knowledge you will know you made the right choice. We personally custom design the proper power plant to match you to your vehicle and its needs. We will be up front and honestly tell you, If your engine selection is right for you and the final application. Doing this ensures that you end up with your dream engine that will stand the test of time. We are most proud of our satisfied customer base. When you purchase an engine from Custom Crate Engines you become part of a growing family and you can be assured you made the right choice. You have my personal guarantee that I will build you a product we both can be proud of.

Thank you,

Doug Mascaritola - President

Great Engines Come From Great Tech Support

We know what business is, so we understand "schedule & budget". With Custom Crate Engine, you control your project completely, everything is tailored to your needs and wants. If you choose us, you will be working with an expert in the field of engine building and driveline design. We are constantly expanding our knowledge to help find the latest trends in technology to serve you better. The owner is involved in every engine design and build. We have over 38 years of machine shop experience, Owner is an award winning engine builder All of our engines are dyno proven horsepower. Tech support on all engines sold. Only top quality parts used One on one customer support All engines are custom built to your specifications making it more personal. We have been selling engines world wide for over 12 years with satisfaction guaranteed.

Big Block Engine

Chevy Big Block Engine

Crate Engine

Ford Crate Engine

Crate Engine

Pontiac Crate Engine

Performance Engine

Chrysler Performance Engine

Street Performance Engine

Oldsmobile Street Performance Engine

Kit Car Engine

Cobra Kit Car Engine

  • Steve

    Hey Guys, It took me a little while to get around to it but I finally got my 350/440 horse motor in my '71 Vega. It sounds and runs great. Thanks for everything. When I get a chance I'll send you a burnout video. With the power...

    - Steve

  • VMF Forums

    VMF Forums 05-15-09 07:45 PM - Post#2073698 In response to 1965FastBack I bought the 418W/500hp stroker, it is a BEAST. I made the drive from central NH to pick it up and the experience was memorable. These guys are impressive...

    - VMF Forums

  • Troy Meeder

    Hey Guys !! What an absolute pleasure it has been working with you. The entire process of my motor build, from conception to completion, has been more than I could of hoped. The motor runs flawlessly. I just returned from a small...

    - Troy Meeder

  • Lenny Slater

    Steve, I would like to thank you and Doug for the outstanding motor that you built for me. I would like to tell you guys it was a pleasure meeting all of you, The way you make your customers feel is great. I enjoyed spending time...

    - Lenny Slater

  • Dave

    Doug, Here are some pictures of my 63 Corvette with your 383 installed. The installation was easy and the motor is great. It started right up the way it came to me and I have been putting about a hundred miles a day on it. I was...

    - Dave

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  • Chevy Corvette History

    Chevy Corvette History

    C1 Early Years: 1953 Corvette was introduced with 235cid six-cylinder engine (150hp) and two speed automatic transmission. All 300 first edition Vettes were Polo White roadsters with red interior. Vette plant located in St. Louis, Missouri. 1954 Exterior paint...

  • Chevy Camaro History

    Chevy Camaro History

    The First Camaro was produced in 1967 Sadly the last model year of the Camaro was 2002, the rumor was that consumers would not buy the Camaro because of the difficulty to see over the front of the hood. Models of the Camaro: LT stands for Luxury Touring RS...

  • Ford Mustang History

    Ford Mustang History

    Mustang History Highlights: 1962 project code named T-5 Robert S. McNamara credited with concept Lee Iacocca was Ford marketing director Names considered: Cheetah, Puna, Thunderbird II, Cougar, Colt Special Falcon, Torino, and Mustang 100,000 new...

  • Ford Cobra Engines

    Ford Cobra Engines

    I would like to take this opportunity to introduce you to Custom Crate Engines. We are a full service automotive machine shop ensuring quality craftsmanship specializing in building performance crate engines. Each engine is custom built to individuals driving habits. We...

  • An Engine Builder You Can Trust 24/7

    An Engine Builder You Can Trust 24/7

  • Ford Truck Engines

    Ford Truck Engines

    If You Would Like Your Truck To Have The Torque And Horse Power Like The Big Boy's, You've Found The Right Company. Our Ford truck crate engines offers some of our finest turn-key drop in ready crate engines. Packages from the legendary small blocks like the...

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