454 HO

438 HP @5,300 RPM / 500 LB-FT TORQUE @3,500 RPM
price: $8,881
part number: 12568774
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    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).

    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 4-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; 118cc chambers
    Valve Size (in): 2.190 intake / 1.880 exhaust
    Compression Ratio: 8.75:1
    Rocker Arms (P/N 19260993): Stamped steel
    Rocker Arm Ratio: 1.7:1
    Water Pump (P/N 19168606): Cast-iron, long-style
    Flexplate (P/N 10185034): 14"
    Recommended Fuel: Premium pump
    Ignition Timing: 36° Total at 4,000 rpm
    Maximum Recommended rpm: 5,500
    Balanced: External
    Intake Manifold (P/N 19131359): Dual Plane

    • Requires addition of carburetor, starter, fuel pump, distributor and ignition system (not included)
    • Clutch linkage bosses are now drilled and tapped. When using cast-iron exhaust manifolds, lower head bolts may need to be replaced with bolts with shorter heads, for clearance
    • Comes with an externally balanced 14" automatic transmission flexplate; use flywheel P/N 14096987 and 11" clutch assembly for manual transmission applications
    • Designed for pre-1976 street vehicles or any off-road vehicle
    • Not intended for marine applications

    NOTE: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.

Disclaimer: Vickar Community Chevrolet reserves the right to withdraw, change, modify or cancel this powertrain promotion program, any placed or in progress orders and the prices advertised at any time for any reason without prior written notice. Final decisions in all matters relating to the interpretation of any rule or aspect of this program rest solely with Vickar Community Chevrolet.