ZZ427/480

480 HP @6,000 RPM/ 490 LB-FT TORQUE @3,800 RPM
price: $16,333
part number: 19331572
Contact Us Add to Cart Catalog

    The classic L88 427 updated for the 21st century Between 1967 and 1969, the legendary L88 was the ultimate expression of Chevy’s Big-Block power, combining a rigid iron cylinder block with lightweight aluminum cylinder heads and a single four-barrel carburetor. That raspy rat engine was rated at 480 horsepower, although the figure was generally thought to be on the conservative side. Chevrolet Performance has recreated that classic Big-Block combination in the ZZ427/480 — including the 480 horsepower rating. Like the original, it features a forged steel crankshaft and high-flow, oval-port aluminum cylinder heads. We’ve upgraded the camshaft from the original’s mechanical flat-tappet design to a smoother hydraulic roller, which delivers great drivability characteristics and a broader rev range. A 10.1:1 compression ratio means it will perform great on pump gas, too. Whether you’re building a ’69 COPO Camaro resto-mod tribute, a modified mid-year Corvette, or a street-tire class winner, the ZZ427/480 is the heritage inspired crate engine that delivers the performance that built the big-block’s legendary reputation.

    Part Number: 19166393
    Engine Type: Chevy Big-Block V-8
    Displacement (cu in): 427
    Bore x Stroke (in): 4.250 x 3.750
    Block: Cast-iron with 4-bolt main caps
    Crankshaft: Forged steel
    Connecting Rods: Forged steel
    Pistons: Forged aluminum
    Camshaft Type: Hydraulic roller
    Valve Lift (in): .527 intake / .544 exhaust
    Camshaft Duration (@.050 in): 224° intake / 234° exhaust
    Cylinder Heads: Aluminum oval port, 110cc chambers
    Valve Size (in): 2.190 intake / 1.880 exhaust
    Compression Ratio: 10.1:1
    Rocker Arms: Aluminum roller style
    Rocker Arm Ratio: 1.7:1
    Distributor: HEI type
    Carburetor: 770-cfm
    Water Pump: Aluminum short-style
    Spark Plugs and Wires: Included
    Flexplate: 14"
    Recommended Fuel: Premium pump
    Ignition Timing: 36° Total at 4,000 rpm
    Maximum Recommended rpm: 6,400
    Balanced: Internal
    Intake Manifold: Dual Plane

    • Due to crate fitment, the carburetor is shipped in a separate box and needs to be installed by an engine installer
    • Requires addition of starter and fuel pump (not included)
    • Clutch linkage bosses are 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 internally balanced 14" automatic transmission flexplate. Requires flywheel designed for internally balanced engines.
    • Designed for pre-1976 street vehicles or any off-road vehicle
    • Not intended for marine applications

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.