If you’re looking for a great engine for your hot rod, and it has to be a big block, you need to read on. Several years ago, Edelbrock teamed up with Pat Musi to develop “crate engines” for performance enthusiasts. The most recent release touts a 555 cubic inch, 723 horsepower, and 652 ft-lbs of torque (with Pro-Flo 4 XT EFI), monster. The collaboration begins as the engine is built by Pat Musi in his racing facility, using parts provided by Edelbrock. According to Edelbrock, a major key to the power delivered are the CNC-ported cylinder heads manufactured at the new state-of-the-art Edelbrock Race Center.
You have choices when ordering your 555-inch behemoth, as it is available in three configurations: AVS2 carbureted, Pro-Flo 4 EFI, and Pro-Flo XT EFI. We’re told the Edelbrock-Musi 555 Pro-Flo XT is the most powerful naturally aspirated crate engine package in Edelbrock’s line.
The Pro-Flo system included on the engine has everything needed to bolt it in and go, such as fuel injectors, fuel rails, O2 sensor and bung, throttle body, electronic engine control unit (ECU), and handheld calibration module. The ECU is self-learning, making initial start-up and tuning a breeze.
Engine parameters can be fine-tuned with the handheld calibration module, which means there is no need for a laptop. All three versions of the engine are competition ready, yet, ultra-reliable for daily street use. All three can also be dropped in and used with standard drivelines. The standard-deck block allows the engine to be installed in most cars without hood clearance issues. The exhaust ports are also in the standard location, which allows the use of off-the-shelf headers.
“We see our relationship with Pat Musi and our involvement in the new Race Center as key elements to our future growth”, said Don Barry, CEO of Edelbrock. “We can’t think of a better organization to ally ourselves with, than Musi Racing. Their reputation for building high-performance, reliable engines is legendary.”
If you’re a serious power enthusiast, there are major advantages to dealing with a combined Edelbrock – Musi produced engine. First, you get the high-quality and high-performance parts that Edelbrock has been proven to deliver, along with the unparalleled knowledge and willingness to help, found within Edelbrock’s Customer Service department.
“Edelbrock is known for its street performance and we are proud of the track record we’ve built with our racing engines”, says Pat Musi. “I have the first prototype 555 engine installed in my personal ‘67 Camaro, the car I started racing with. It hauls ass down the track and has been trouble-free for over 10 years.”
If you’re ready to install some serious big-block power in your classic hot rod, it’s about time you check out the Edelbrock-Musi crate engines.