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Chevrolet

Chevrolet Performance 454 HO Big Block Crate Motor - 425 HP/500 LB-FT - Forged Foundation Engine - Upgrade Ready Platform

Regular price £10,393.19 GBP inc VAT
Shipping calculated at checkout.
SKU: 454-ho-big-block
Delivery ETA: Oct 12 – Oct 16
Backorder. We will confirm dispatch timings after checkout.

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Chevrolet Performance 454 HO Big Block Crate Motor - 425 HP/500 LB-FT - Forged Foundation Engine - Upgrade Ready Platform

Chevrolet

Product Details

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Vehicle Compatibility

Fits Chevrolet Performance 454 HO Big Block Crate Motor - 425 HP/500 LB-FT - Forged Foundation Engine - Upgrade Ready Platform.

Please refer to manufacturer specifications for complete compatibility information.

Key Features

Time-Tested Big-Block Foundation with Forged Strength

The 454 HO represents Chevrolet Performance's proven big-block foundation, delivering 425 horsepower and 500 lb-ft of torque with an all-forged rotating assembly that can handle serious power upgrades.

Key Specifications:

  • Engine Type: Gen VI Big-Block V-8
  • Displacement: 454 cu in (7.4L)
  • Bore x Stroke: 4.250" x 4.000"
  • Power: 425 horsepower at 5,000 rpm
  • Torque: 500 lb-ft at 3,200 rpm
  • Compression Ratio: 8.5:1
  • Maximum RPM: 5,500 recommended

All-Forged Construction:

  • Gen VI cast iron block with 4-bolt main caps
  • Forged steel crankshaft for maximum strength
  • Forged steel connecting rods
  • Forged aluminum pistons
  • One-piece rear main seal design

Conservative Performance:

  • Cast iron oval-port cylinder heads
  • Valve sizes: 2.190" intake / 1.880" exhaust
  • Hydraulic roller camshaft for excellent drivability
  • 8.5:1 compression ratio for pump gas compatibility

Foundation for Upgrades:

  • Excellent foundation for power upgrades
  • Popular foundation for aluminum head swaps
  • Strong enough for significant camshaft upgrades
  • Proven platform for custom builds
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Product Videos

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Product Specifications

Part Type
Big Block Foundation Engine
Product Type
Big Block Foundation Engine
Weight
302kg
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Package Contents

Kit includes all necessary components. Please refer to manufacturer specifications for detailed package contents.