LSX454R Crate Engine, 776 HP @ 7000 RPM

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

776 HP @ 7000 RPM
649 ft/lbs TQ @ 5100 RPM

Installation Notes:
Intended for off-road use only
Requires race fuel (110 octane minimum)
Not intended for marine use
Requires LSX Ignition Controller (p/n 809-19171130)
Oil pan not included (Dust shield installed for shipment)
LSX eight-bolt crank flange
Uses 4500-series carburetor (included)

Quite Simply the Most Powerful Crate Engine
Ever from Chevrolet Performance!

Free Shipping!

Drag racers take note! Chevrolet Performance's LSX454R crate engine delivers 776 horsepower that will help you stay in front of the competition. More than the most powerful LS engine in their portfolio, it is the most powerful crate engine they have ever offered!

Chevrolet engineers designed the LSX454R for the unique, high-rpm demands of drag racing. It is a high-compression, solid-roller combination that uses LSX DR cylinder heads. These 11-degree, six-bolt aluminum heads feature raised ports that provide tremendous airflow. Complemented with an exclusive, high-rise open-plenum intake manifold and a Dominator-type carburetor to complete the assembly.

The LSX454R's bottom end includes the LSX Bowtie cylinder block and an all-forged rotating assembly. And while they rate the engine at 776 horsepower in its naturally aspirated form, we know that there is room for more.

LSX454R TECH SPECS:

Engine Type: LS-Series Small-Block V-8
Displacement: 454ci (7.4L)
Bore x Stroke: 4.185'' x 4.125'' (106.3 x 104.8mm)
Block: LSX cast iron with six-bolt cylinder head attachment
Crankshaft: 4340 Forged steel with 8-bolt flange
Connecting Rods: 4340 Forged steel
Pistons: 4032 Forged aluminum
Camshaft Type: Mechanical roller
Camshaft Lift: .738'' intake / .738'' exhaust
Camshaft Duration (@.050 in.): 250° intake / 270° exhaust
Cylinder Heads: Drag race cylinder heads six-bolt LSX aluminum
Valve Size: 2.250'' x 6.370'' intake / 1.625'' x 6.400'' exhaust; Stainless steel
Compression Ratio: 13.1:1
Rocker Arms: Shaft mounted with needle bearing fulcrum and tip
Rocker Arm Ratio: 1.9:1
Recommended Fuel: Race fuel (110 octane minimum)
Maximum Recommended RPM: 7100
Reluctor Wheel: 58x
Balanced: Internal

Engine Includes:

High-rise, open-plenum aluminum intake manifold
Dominator carburetor
Harmonic Balancer
Orange powdercoated valve covers
Note: Chevrolet Performance Racing Crate Engines are excluded from limited warranty