Product Details
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 Specifications
Package Contents
Kit includes all necessary components. Please refer to manufacturer specifications for detailed package contents.