Free Shipping on Auto Parts Orders Over $75.                           Order by 11 PM EST for Same Day Shipping!

Chevrolet Performance 12498778 - Chevrolet Performance 454 HO Partial Engine



Chevrolet Performance 12498778 - Chevrolet Performance 454 HO Partial Engine
Chevrolet Performance 12498778 - Chevrolet Performance 454 HO Partial Engine

JEGS Part Number: 809-12498778

454 HO Partial Engine

Chevrolet Performance 12498778 Details

INSTALLATION NOTES:
  • Clutch linkage bosses are now drilled and tapped.
  • 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.

  • Chevrolet Performance 454 HO Partial Engine

    Free Shipping!
    The Chevrolet Performance 454ci Partial Engine are for those who want the sturdy foundation of the 454 HO as the starting point of a custom engine, this brand new partial engine includes the forged crank, rods and pistons, as well as the balancer, oil pan and front cover. The Chevrolet engineers assembled this as the basis for the Big Block enthusiasts everywhere!

    454 HO PARTIAL 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
  • Compression Ratio: 8.75:1 (with 118cc combustion chamber head)
  • Flexplate: 14'' diameter
  • Maximum Recommended RPM: 5500
  • Balanced: External
  • GM Warranty

    Chevrolet Performance 12498778

    Flywheel Included
    No
    Engine Balance
    External
    Assembled
    Yes
    Connecting Rod Beam Style
    I-beam
    Connecting Rod Material
    Forged 4340 steel
    Crankshaft Material
    Forged 4340 steel
    Deck Height (in.)
    9.8
    Engine Block Material
    Cast iron
    Flexplate Included
    Yes
    Harmonic Balancer Included
    Yes
    Main Bolt Style
    4-bolt
    Main Journal Type
    454 mains
    Oil Pan Included
    Yes
    Piston Material
    Forged aluminum
    Quantity
    Sold individually
    Short Block Piston Style
    Flat top
    Timing Cover Included
    Yes
    Rear Main Seal Style
    1-piece
    Manufacturer's Part Number:
    12498778
    Intended for pre-1978 street vehicles and all off-road vehicles. Not intended for marine use.
    MSD Ignition 84741 - MSD Crate Ignition Kits
    Only $465.95

    Chevrolet Performance 19170093 - Chevrolet Performance Holley Carburetors
    Only $433.28

    Chevrolet Performance 88961867 - Chevrolet Performance Distributors
    Only $353.47

    Chevrolet Performance 12562920 - Chevrolet Performance Big Block Chevy Service Replacement Cylinder Heads
    Only $685.99


    See All Items You Need