Copo 427 - 425 Hp Crate Engine - GM (17802825)

  • $31,465.00
  • $4,279.24 (14% off)
  • $27,185.76
Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 17802825
  • Copo 427 - 425 Hp Crate Engine
Manufacturer Warranty Minimum of 12 Months
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Product Details

  • Engine
  • COPO 427 - 425 hp
    The COPO 427 uses the large-bore cylinder block and high-flow
    cylinder heads of the LS7 engine and complements them with
    a high-compression rotating assembly to deliver big power from
    its large displacement. Its lightweight aluminum block and
    heads revive the spirit of the original ZL1 all-aluminum 427
    Big-Block that helped forge the COPO legacy in 1969.
    TECH SPECS:
    Displacement: 427 cu in (7.0L)
    Compression Ratio: 13.5:1
    Cylinder Block: LS7 cast aluminum
    Bore x Stroke (in): 4.125 x 4.000
    Crankshaft: Forged steel
    Connecting Rods: Forged steel
    Pistons: Forged dome
    Cylinder Heads: LS7 aluminum
    Induction: Natural
    Intake Manifold: Holley Hi-Ram
    Camshaft Type: Hydraulic roller
    Camshaft Lift (int./exh.): .630/.630-inch
    Camshaft Duration (int./exh.): 233/276 deg. @ .050-inch

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