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19332316 - CPP LSX454 620 HP Crate Engine

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LSX 454 Crate Engine

An engine with 454 cubic inches will always be associated with higher performance Chevys, and that tradition continues with the all new LSX454 crate engine. We started with the new LSX bowtie block, stuffed it with an all-forged, super tough rotating assembly, and bolted on a pair of our new deep breathing LSX six-bolt cylinder heads.

The new LSX six bolt cylinder heads are based on the race-derived LS7 heads that help deliver more than 500 horsepower in the Corvette Z06. They enable tremendous low end torque and great high RPM power. The LSX 454 is delivered in long block form. It also comes dressed with great looking, all new orange powder-coated valve covers with 'LSX 454" logos engraved and painted in black.

Oil pan and oil pump pickup are not included. LSX valve covers do not have coil mount provisions, coils will need to be relocated

Power: 620 HP @ 6200 RPM, 590 ft. lbs. of torque @ 4800 RPM
Displacement: 454 CID, 7.4L
Bore x Stroke: 4.185” x 4.125”
Compression Ratio: 11:1
Recommended Fuel: 92 Octane
Block: LSX Cast Iron with 6 bolt cross bolted main caps
Crankshaft: 4340 Forged Steel, with 8 bolt flange
Connecting Rods: 4340 Forged Steel
Pistons: Forged Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .635” Intake / .635” exhaust
Cam Duration @ .050”: 236 deg. Intake / 246 deg. Exhaust
Lobe Separation: 110 Deg
Cylinder Heads: Aluminum LSX LS7 Rectangular style ports
Combustion Chamber: 70cc
Valves: 2.200” Intake/ 1.610” Exhaust
Rocker Arms: Cast Roller Trunion, 1.8:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 6500

Engine Includes:
• Fully GM assembled long block
• Harmonic Balancer
• Front timing cover

General Motors limited 2 year / 50,000 mile parts & labor warranty. Click on Document tab above for full details.

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Application List


Shipping Information

  • Item Requires Shipping
  • 500.0 lbs.
  • W37.3000” x H41.0000” x L41.8000”
  • Free Shipping!
  • FREE 48 State Truck Freight Shipping (International shipping will require freight quote)

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