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Chevrolet Performance LSX454 454ci Engine 627 HP @ 6300 RPM

Chevrolet Performance 19355573


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Chevrolet Performance LSX454 454ci Engine 627 HP @ 6300 RPM $10,981.88
LSX454 454ci Engine
  • 627 HP @ 6300 RPM
  • 586 ft/lbs TQ @ 5100 RPM

  • Chevrolet Performance 19355573 Details

    LSX454 454ci Engine

  • Assembly does not include any electronics
  • Intended for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications
  • Requires LSX Ignition Controller (p/n 809-19171130) when using a carburetor
  • Requires the purchase and installation of an oil pan (dust shield installed for shipment)
  • LSX 8-bolt crank flange
  • Requires premium fuel

  • An LSX with Big-Block Power!

    Free Shipping!

    With the LSX Bowtie block, Chevrolet has built a 21st century 454 with the latest technology. It's lighter and more compact than an original Big-Block 454 - while delivering Big-Block output of 627 hp and 586 lb.-ft. - but 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.

    Chevrolet Performance delivers the engine without an intake manifold and other accessories. Use LSX-LS7 single plane carbureted intake manifold (p/n 809-19244033). 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.

  • Engine Type: LSX-Series Gen IV Small-Block V-8
  • Displacement: 454ci (7.4L)
  • Bore x Stroke: 4.185'' x 4.125'' (106.3mm x 104.8mm)
  • Block: LSX cast-iron with six-bolt, cross-bolted main caps
  • Crankshaft: 4340 forged steel with 8-bolt flange
  • Connecting Rods: 4340 forged steel
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .648'' intake / .648'' exhaust
  • Camshaft Duration (@.050 in.): 236° intake / 246° exhaust
  • Cylinder Heads: Aluminum LSX-LS7 port; with ''as cast'' 70cc chambers
  • Valve Size: 2.200'' titanium intake / 1.610'' hollow sodium-filled exhaust
  • Compression Ratio: 11.0:1
  • Rocker Arms: Investment cast, roller trunnion
  • Rocker Arm Ratio: 1.8:1
  • Recommended Fuel: Premium pump (92 octane)
  • Maximum Recommended RPM: 6500
  • Reluctor Wheel: 58x
  • Balanced: Internal
  • JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    Note: Standard GMPP 24-Month/50,000-Mile Crate Engine Warranty applies

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    Some parts are not legal for use in California or other states with similar laws / regulations