ZZ427/480 | DEGROOTE HILL CHEVROLET BUICK GMC - Chevrolet Performance Crate Engines
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ZZ427/480

480 HP @6000 RPM
490 LB-FT TORQUE

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Description

ZZ427/480 Tech Specs

  • Part Number: 19331572
  • Engine Type: Chevy Big-Block V-8
  • Displacement (cu. in.): 427 (7.0L)
  • Bore x Stroke (in.): 4.250 x 3.750
  • Block (P/N 19170538): Cast-iron with four-bolt main caps
  • Crankshaft (P/N 19171620): Forged steel
  • Connecting Rods (P/N 19211226): Forged steel
  • Pistons (P/N 19171618): Forged aluminum
  • Camshaft Type (P/N 12366543): Hydraulic roller
  • Camshaft Lift (in.): .527 intake / .544 exhaust
  • Camshaft Duration (@.050 in.): 224° intake / 234° exhaust
  • Cylinder Heads (P/N 19211799): Aluminum oval port, 110-cc chambers
  • Valve Size (in.): 2.190 intake / 1.880 exhaust
  • Compression Ratio: 10.1:1
  • Rocker Arms (P/N 19210726): Aluminum roller style
  • Rocker Arm Ratio: 1.7:1
  • Distributor (P/N 19212081): HEI type
  • Carburetor (P/N 19170093): 770-cfm
  • Water Pump (P/N 19168602): Aluminum short-style
  • Spark Plugs and Wires: Included
  • Recommended Fuel: Premium pump
  • Ignition Timing: 36° Total @ 4,000 rpm
  • Maximum Recommended rpm: 6400
  • Balanced: Internal