Click on image to zoom

LSX 454 627 HP Crate Engine Chevrolet Performance 19417357

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Pricing: $14,745.07

Customize Your Item

- Additional Shipping Options -
 * required


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 LSX 454 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.
Note: 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: 627 HP @ 6300 RPM, 586 ft. lbs. of torque @ 5100 RPM
Displacement: 454 CID, 7.4L
Bore x Stroke: 4.185” x 4.125”
Compression Ratio: 11.0:1
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.
Related Engines and Components:
Carbureted Engine Controller Package
GM Single Plane 4 barrel Intake Manifold Package
Fully Assembled LSX376 Carb to Pan Crate Engine
Complete EFI Intake Manifold Package
EFI Engine Controller Package
LS Oil Pan Packages
Complete Manual Trans Install Kits
LS Serpentine Accessory Drive Systems and Components

Application List


Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.

Trusted Specialists GM engine & parts specialists
Located in the USA Owned, operated, & employed
Need Assistance? Call us at 888-748-4655
Mon-Thu 8am-6pm EST
Fri 8am-5:30pm EST
Have a Question Email us and we'll get back to you within 24 hours