454ho

454 HO

Through December 31, get a $250 mail-in rebate on all Chevrolet Performance crate engines.

$7,690

MSRP

438 HP

@5300 RPM

12568774

PART NO.

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).

Connect & Cruise Powertrain System

Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles. Connect and Cruise packages are available for a wide variety of crate engines which can be paired with an automatic or manual transmission.

Through December 31, get a $500 or $750 mail-in rebate on all Chevrolet Performance Connect & Cruise systems.

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

Installation Guides

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

  • See participating U.S. dealer or authorized powertrain reseller for details and rebate form, which must be postmarked by 1/31/18. Rebates are available to customers who have purchased the parts detailed above at a participating Chevrolet, Buick, GMC, or Cadillac dealer or a powertrain retailer located in the United States. See rebate form for eligible parts and details. Allow 6 to 8 weeks for delivery of debit card. Offer valid 11/1/17 to 12/31/17. Rebate form and details available at chevrolet.com/performance/offers.

  • The Manufacturer's Suggested Retail Price excludes tax, shipping and installation. Individual retailer pricing may vary. Please see your local dealer or retailer for details.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.