ZZ427 480hp Big Block Chevy Crate Engine - 19331572

Description Due to ever-changing availability, please contact us before ordering. A MODERN TAKE ON THE CLASSIC L88 The L88 427 was the ultimate expression of Chevy’s production Big-Block power, combining a rigid iron cylinder block with lightweight aluminum cylinder heads and a single, four-barrel carburetor. Chevrolet Performance engineers have recreated that classic, raspy rat engine, but with updated components that enhance drivability – and performance!

Our engine assembly features the latest-generation block casting with four-bolt main caps, an all-forged rotating assembly for exceptional strength and durability, and a hydraulic roller camshaft instead of the original L88’s flat tappet cam, for greater drivability and a broader performance range. It also features aluminum oval-port cylinder heads with 2.19/1.88-inch valves and a pump-gas-friendly 10.0:1 compression ratio.

Whether you’re building a ’69 COPO Camaro resto-mod tribute, a modified mid-year Corvette or a street-tire class winner, this heritage-inspired crate engine delivers the performance that built the Big-Block’s legendary reputation. TECH SPECS Part Number:19166393 Engine Type:Chevy Big-Block V-8 Displacement (cu in):427 Bore x Stroke (in):4.250 x 3.750 Block (P/N19170538):Cast-iron with 4-bolt main caps Crankshaft (P/N19171620):Forged steel Connecting Rods (P/N19211226):Forged steel Pistons (P/N 19171618):Forged aluminum Camshaft Type (P/N12366543):Hydraulic roller Valve Lift (in):.527 intake / .544 exhaust.

Camshaft Duration (@.050 in):224° intake / 234° exhaust Cylinder Heads (P/N 19331423):Aluminum oval port, 110cc chambers Valve Size (in):2.190 intake / 1.880 exhaust Compression Ratio:10.1:1 Rocker Arms (P/N19210726):Aluminum roller style Rocker Arm Ratio:1.7:1 Distributor (P/N88961867):HEI type Carburetor (P/N19170093):770-cfm Water Pump (P/N19168602):Aluminum short-style Spark Plugs and Wires:Included Flexplate (P/N12561217):14″ Recommended Fuel:Premium pump Ignition Timing:36° Total at 4,000 rpm Maximum Recommended rpm:6,400 Balanced:Internal Intake Manifold (P/N12363406):Dual Plane INSTALLATION NOTES.

• 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.

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