LSX454 Long Block Kit

LSX454 Long Block Kit Chevrolet Performance LSX-Series Crate Engine 19417357

627hp @ 6,300 rpm

586 lb.-ft. @ 5,100 rpm

NOTE: Refer to catalog for the complete horsepower and torque testing procedures.

An LSX with big-block torque!

With the LSX Bowtie block, we’ve built a 21st century 454 with our latest technology. It’s lighter and more compact than an original Big-Block 454–and it delivers the stunning, big-torque output you expect: 586 lb.-ft., along with 627 horsepower. Best of all, it requires no more space under the hood than a production LS engine.

The LSX454 is filled with an all-forged, super-tough rotating assembly and features a pair of our deep-breathing LSX six-bolt cylinder heads. It also comes dressed with great-looking, orange powder-coated valve covers with engraved LSX454 logos.

The LSX454 valve covers do not include provisions for mounting ignition coil brackets. Aftermarket or custom relocation brackets must be obtained. It also includes an 8-bolt crankshaft flange that may require an adapter for use with some transmissions.

Chevrolet Performance LSX454 Long Block Kit Crate Engine Installation Notes

• Assembly does not include any electronics
• Requires LS7 pattern intake manifold
• Assembly shipped without an intake manifold (see catalog)
• Requires the purchase and installation of an oil pan (see catalog) (dust shield installed for shipment)
• Not intended for marine applications
• Requires LS/LSX Ignition Controller P/N 19355418 when using a carburetor (see catalog)
• LSX 8-bolt crank flange
• Requires premium fuel
• Use LSX454 control kits for fuel injected applications (P/N 19354342 for automatic transmissions or P/N 19369179 for manual transmissions)

Mobil 1 is the recommended engine oil for all Chevrolet Performance Engines

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty, whichever comes first. See your GM dealer for details.

Chevrolet Performance does not utilize any used or remanufactured parts in this crate engine, except for the starter, alternator and power steering pump

This part is intended for competition use only. See page 2 of catalog for complete details