Chevrolet Performance ZZ427/480 Turn Key Carb Crate Motor - 480 HP/490 LB-FT - Modern L88 Tribute - Heritage Inspired

Modern L88 - Heritage-Inspired Big-Block Performance

The ZZ427/480 is Chevrolet Performance's modern interpretation of the legendary L88 427, combining classic big-block heritage with updated components for enhanced drivability and performance while maintaining the classic 480 horsepower rating.

Key Specifications:

• Part Number: 19331572 / 19166393
• Engine Type: Chevy Big-Block V-8
• Displacement: 427 cu in (7.0L)
• Bore x Stroke: 4.250" x 3.750"
• Power: 480 horsepower
• Torque: 490 lb-ft
• Compression Ratio: 10.1:1
• Maximum RPM: 6,400 recommended

Heritage-Inspired Construction:

• Cast-iron block with four-bolt main caps (latest-generation casting)
• All-forged rotating assembly for exceptional strength and durability
• Forged steel crankshaft and connecting rods
• Forged aluminum pistons
• Internal balance design

Modern L88 Technology:

• Aluminum oval-port cylinder heads with 110cc chambers
• Valve sizes: 2.190" intake / 1.880" exhaust
• Hydraulic roller camshaft (upgrade from original L88's flat-tappet)
• Aluminum 1.7:1 ratio roller rocker arms

Advanced Camshaft:

• Hydraulic roller camshaft for greater drivability
• Valve lift: .527" intake / .544" exhaust
• Duration @ .050": 224° intake / 234° exhaust
• Broader performance range than original L88

Turn-Key Package Includes:

• HEI distributor and spark plug wires
• 770-cfm carburetor (ships uninstalled due to crate fitment)
• Aluminum short-style water pump
• 8" harmonic balancer
• 14" internally balanced flexplate

Installation Requirements:

• Due to crate fitment, the carburetor is shipped in a separate box
• Requires addition of starter and fuel pump (not included)
• Premium pump gasoline recommended
• Internally balanced - requires appropriate flywheel for manual transmissions