Chevrolet Performance ZZ454 Long Big Block Crate Motor - 469 HP/519 LB-FT - Aluminum Head Value - Weight Savings

Aluminium-Headed Big-Block Value Champion

Chevrolet Performance engineers took the 454 HO with its super-tough, all-forged reciprocating assembly and matched it with a set of higher-flow, oval-port aluminium cylinder heads resulting in 469 hp and 518 lb-ft of torque. They dubbed it the ZZ454/440, and it's an affordable high-performance big-block for any chassis you can stuff it in.

Key Specifications:

• Part Number: 19433410 / 19331574
• Engine Type: Gen VI Big-Block V-8
• Displacement: 454 cu in (7.4L)
• Bore x Stroke: 4.250" x 4.000"
• Power: 469 horsepower at 5,500 rpm
• Torque: 519 lb-ft at 3,700 rpm
• Compression Ratio: 9.6:1
• Maximum RPM: 5,500 recommended

Value Engineering:

• New cylinder block casting with four-bolt main caps for greater strength
• All-forged reciprocating assembly from the proven 454 HO
• Forged steel crankshaft and forged steel connecting rods
• Forged aluminium pistons

Aluminium Head Advantage:

• Oval-port aluminium heads with 2.25" intake and 1.88" exhaust valves
• Smaller 110-cc combustion chambers boost compression to 9.6:1
• Nearly 100 pounds lighter than iron heads for improved performance
• 15 horsepower improvement over the iron-headed 454 HO

Performance Camshaft:

• High-lift, hydraulic roller camshaft for excellent drivability
• Cam lift: .510" intake / .540" exhaust
• Duration @ .050": 211° intake / 230° exhaust
• Requires no periodic lash adjustments

Installation Package:

• Water pump, balancer, aluminium intake manifold, and 14-inch flexplate
• Stamped steel, self-aligning, 1.7:1 ratio rocker arms
• ACDelco spark plugs included