454 HO

454 HO- Tech Specs

Part Number: 12568774             

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 12562920): Iron rectangular port; 118-cc chambers

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

Compression Ratio: 8.75:1

Rocker Arms (P/N 12523976): 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

454 HO

SKU: 12568774


Price Starting At $10,333.58

Horsepower: 438 HP @ 5300 RPM

LB-FT Torque: 500 LB-FT @ 3500 RPM Torque

Our most economical Big-Block crate engine delivers 500 lb-ft

Chevrolet Performance’s 454 HO crate engine is classic in its own time, offering enthusiasts an affordable Big-Block combination with performance specs that will make you think it’s 1970 all over again — with 438 horsepower and 500 asphalt-wrinkling lb-ft of torque.


The foundation of the 454 HO is a brand-new, updated cylinder block that incorporates many strength and performance design enhancements – making it a smart and economical alternative to rebuilding. We also add an all-forged reciprocating assembly for maximum durability, a roller camshaft, and a set of rectangular-port iron cylinder heads.


We deliver the 454 HO with a water pump, balancer, 14-inch flexplate, and aluminum intake manifold. Add a carburetor, ignition system, and starter and your budget Big-Block will be ready to roar. All of the necessary parts are available from Chevrolet Performance.


If you want the strength and convenience of the 454 HO bottom end, but want to add your own heads and induction system, use our 454 partial engine (P/N 12498778).

 @ $10,333.58

*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


Wolfe 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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