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Chevrolet Performance 454 HO 454ci Engine Kit 438 HP @ 5300 RPM

Chevrolet Performance 12568774K
Easy Kit


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Chevrolet Performance 454 HO 454ci Engine Kit 438 HP @ 5300 RPM $7,231.55
454 HO 454ci Engine Kit
  • 438 HP @ 5300 RPM
  • 500 ft/lbs TQ @ 3500 RPM
  • 454 HO Engine
  • Holley 770 cfm Street Avenger Carb
  • HEI Distributor
  • 8.5mm Spark Plug Wires
  • Chrome Valve Covers & Wing Nuts
  • Chrome Dipstick

  • Chevrolet Performance 12568774K Details

    454 HO 454ci Engine Kit

  • With Carburetor

  • 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 809-14096987 and 11'' clutch assembly for manual transmission applications
  • Designed for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications
  • Motor equipped with truck style oil pan and pickup. Vehicle specific oil pan and pickup required for installation.

    Kit Includes:
  • Chevrolet Performance 454 HO Engine - 809-12568774
  • Holley 770 cfm Street Avenger Carb - 510-0-80770
  • Chevrolet Performance HEI Distributor - 809-93440806
  • JEGS 8.5mm Black Ultra Pow'r Wires - 555-402027
  • Proform Chrome Valve Covers - 778-141-812
  • Proform Chrome Bowtie Wing Nut Valve Cover Fasteners - 778-141-600 (Qty 4 of 4/pkg)
  • JEGS Chrome Dipstick - 555-52275

  • Specifications:

    Manufacturer's Part Number:

    Big Torque on a Budget

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    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, which 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.

    454 HO TECH SPECS:
  • Engine Type: Chevy Big-Block V-8
  • Displacement: 454ci
  • Bore x Stroke: 4.250'' x 4.000''
  • Block: Cast-iron with four-bolt main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged steel
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .510'' intake / .540'' exhaust
  • Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
  • Cylinder Heads: Iron rectangular port, 118cc combustion chambers
  • Valve Size: 2.190'' intake / 1.880'' exhaust
  • Compression Ratio: 8.75:1
  • Rocker Arms: Stamped steel
  • Rocker Arm Ratio: 1.7:1
  • Water Pump: Cast-iron, long-style
  • Flexplate: 14'' diameter
  • Recommended Fuel: Premium pump (92 octane)
  • Ignition Timing: 36° Total @ 4000 rpm
  • Maximum Recommended RPM: 5500
  • Balanced: External
  • Recommended Spark Plug: AC Delco #065-MR43T or any spark plug with 14mm, .460'' reach, 5/8'' hex, tapered seat, non-projected tip

    GM Warranty

    JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

  • What transmissions would work well with this besides the PAGM STREET SMART 4L80E? Which automatic transmissions would be recommended for a cruiser (considering swapping Buick 455 for this)?

    Asked by: Bldman
    Any of the later transmissions will work with this, TH400 , 4L60E, if you use a Buick engine you will need to adapt the transmission to fit the block.
    Answered by: Rusty B
    Date published: 2018-05-02

    Roughly how much does this engine weigh?

    Asked by: wildwildow
    The engine weighs 735 lbs
    Answered by: Rusty B
    Date published: 2018-03-28
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    Some parts are not legal for use in California or other states with similar laws / regulations