GMPP Announces LSX454 Crate Engine Intake Kit

Courtesy of GMPP

GRAND BLANC, MI – GM Performance Parts’ (GMPP) new LSX454 Completion Kit (part number 19244481) is the solution for builders looking to get their LSX454 crate engine running with production-style fuel injection, with a GMPP-engineered custom calibration designed specifically for this application. It is on sale now, carrying an MSRP of $1,197.44.

The LSX454 Completion Kit includes an LS7 intake manifold – pre-assembled with the fuel rail, injectors and throttle body – a calibrated engine controller, wiring harness and throttle pedal assembly for the electronically controlled throttle. This comprehensive system saves builders the time and money of searching for and purchasing the parts individually, while the calibrated controller eliminates the need for third-party tuning.

“We are always looking for ways to make the installation of our crate engines easier, and the new LSX454 completion kit is a great example,” said Dr. Jamie Meyer, product integration manager for GM Performance Parts. “By ordering the crate engine, the completion kit and a few other simple parts, you have all the basic components required to install the LSX454 in a vintage car, truck or street rod and get it running without the need for professional tuning.”

The kit’s wiring harness is designed for easy, “plug and play” installation with a controller that was specially calibrated for the LSX454’s displacement and performance parameters. When installed per the kit’s instructions, the harness/controller combination doesn’t require additional tuning or other calibration and delivers the start-up, idle and driving characteristics of a production GM vehicle.

With the kit’s LS7 intake manifold, the LSX454 crate engine (part number 19244611) is rated at 580 horsepower at 6,200 rpm and 590 lb.-ft. of torque at 4,800 rpm. The manifold matches perfectly with the intake ports of the LSX454’s six-bolt cylinder heads, which are based on production 7.0L LS7 heads. It was originally designed for the high-rpm performance of the Chevrolet Corvette Z06 and is matched with a 90mm-diameter throttle body – the largest production throttle body from GM – that offers great airflow for the larger-displacement, 7.4L crate engine.

Inside the LSX454

The LSX454 crate engine has the displacement of Chevrolet’s legendary 454 big-block packaged within the small-block dimensions of GM’s LS engine family. It uses GMPP’s standard-deck LSX Bowtie block for strength and is filled with an all-forged, rotating assembly – and bore and stroke dimensions of 4.185 inches by 4.125 inches. Breathing is handled by GMPP’s exclusive LSX six-bolt cylinder heads, which provide greater clamping strength over production-style four-bolt heads.

On the outside, the engine is dressed with distinctive orange powder-coated valve covers with engraved “LSX454” logos. (The valve covers do not include mounting provisions for ignition coil brackets. Aftermarket or custom relocation brackets must be obtained.)

The LSX454 is manufactured with the same, heavy-duty eight-bolt crankshaft flange used on the supercharged 6.2L LSA engine that’s found in the Cadillac CTS-V series. Like the six-bolt heads, the eight-bolt pattern of the crankshaft flange offers greater clamping power, but requires a flexplate adapter for use with popular automatic transmissions, such as the Hydra-Matic 4L80-E.

Additional installation notes for the LSX454 include:

• The LSX454 is delivered without an oil pan (a temporary dust shield is installed at the factory). GMPP’s Muscle Car Oil Pan Kit (part number 19212593) fits most 1955-95 GM front-engine/rear-drive vehicles.
• One of GMPP’s front-end accessory drive (FEAD) kits is required. They include the alternator, power steering pump, their mounting brackets and pulleys, hardware and, on some kits, an air conditioning compressor. 
• Aftermarket engine mount brackets must be used to install an LS engine in a vehicle that wasn’t originally equipped with one.
• GMPP recommends the LS1 Engine Installation Guide (part number 88959384), which illustrates basic procedures and offers helpful tips on installing an LS engine older vehicles.

Both the new LSX454 Completion Kit and the LSX454 crate engine are warranted. The Completion Kit is backed by a 12-month/12,000-mile limited warranty and the LSX454 crate engine carries a 24-month/50,000-mile limited warranty. See complete details at gmperformanceparts.com.