Chevrolet ZZ427/480 Deluxe

ZZ427/480 Deluxe

480 hp @ 6,000 rpm | 490 lb.-ft. @ 3,800 rpm
REQUIRES STARTER AND FUEL PUMP

ZZ427/480 Deluxe a modern big-block powerhouse.

Performance

Horsepower: 480 hp @ 6,000 rpm
Torque: 490 lb.-ft. @ 3,800 rpm
Max Rec RPM: 6,400

Engine Basics

Part Number: 194331572
Engine Type: Chevy Big-Block V8
Displacement: 427 cu. in. (7.0L)
Block: Cast iron with 4-bolt main caps
Balanced: Internal

Measurements

Bore x Stroke: 4.250 in. x 3.750 in.
Valve Lift (in): .527 intake / .544 exhaust
Camshaft Duration (@ 0.050 in): 224° intake / 234° exhaust
Compression Ratio: 10.1:1
Rocker Arm Ratio: 1.7:1

Internal Components

Crankshaft: Forged steel
Connecting Rods: Forged steel
Pistons: Forged aluminum
Intake Manifold: Dual plane
Carburetor: 770-cfm
Camshaft Type: Hydraulic roller
Rocker Arms: Aluminum roller-style
Water Pump: Aluminum short-style

Cylinder Head and Valves

Cylinder Heads: Aluminum oval port; 110cc chambers
Valve Size (in.): 2.190 intake / 1.880 exhaust

Fuel and Ignition

Ignition Timing: 36° Total @ 4,000 rpm
Flexplate: 14”
Distributor: Billet HEI type
Recommended Fuel: Premium pump