ZZ454/440- Tech Specs

Part Number: 19331574

Engine Type: Chevy Big-Block V-8

Displacement (cu. in.): 454

Bore x Stroke (in.): 4.250 x 4.000

Block (P/N 19170538): Cast-iron with four-bolt main caps

Crankshaft (P/N 14096983): Forged steel

Connecting Rods (P/N 19170198): Forged steel

Pistons (P/N 10215228): Forged aluminum

Camshaft Type (P/N 24502611): Hydraulic roller

Camshaft Lift (in.): .510 intake / .540 exhaust

Camshaft Duration (@.050 in.): 211° intake / 230° exhaust

Cylinder Heads (P/N 12363392): Aluminum oval port; 110-cc chambers

Valve Size (in.): 2.190 intake / 1.880 exhaust

Compression Ratio: 9.6:1

Rocker Arms (P/N 12368082): Stamped steel

Rocker Arm Ratio: 1.7:1

Water Pump (P/N 19168606): Cast-iron, long-style

Flexplate (P/N 10185034): 14"

Recommended Fuel: 92 octane

Ignition Timing: Base 4° BTDC, 26° Total

Maximum Recommended rpm: 5500

Balanced: External


SKU: 19331574


Price Starting At $10,445.03

Horsepower: 469 HP @ 5500 RPM

LB-FT Torque: 519 LB-FT @ 3700 RPM TORQUE

Oval-port aluminum heads deliver big power in an affordable package

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


The ZZ454/440 uses our new cylinder block casting for greater strength and performance, while the aluminum heads use smaller, 110-cc combustion chambers to boost compression to 9.6:1, up from 8.5:1 on the 454 HO. We then match the airflow capability with a high-lift, hydraulic roller camshaft that delivers great idle quality and requires no periodic lash adjustments.


Our crate engine package includes the ZZ454/440 assembled with a water pump, balancer, aluminum intake manifold, and a 14-inch flexplate. Your Chevrolet Performance dealer can hook you up with the carburetor, starter, ignition system, and other accessories required to get this big-power big-block started.

 @ $10,445.03

*Images may be stock photos and may not represent the actual part. Part numbers and prices are subject to change without notice



phone: 780-486-3335

fax: 780-486-7357


Western GMC Buick
18325 Stony Plain Rd NW
Edmonton, T5S 1C6

*Images may be stock photos and may not represent the actual part. Part numbers and prices are subject to change without notice

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