19433409 Chevrolet Performance 454

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Item #: 19433409
Reg. Price: $10,776.88
Our Price: $8,971.76
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Description  more details

19433409 HO 454 Chevrolet Performance 454 Replaces 12568774
438 HP Iron Head 454 HO


Big torque on a budget

Chevrolet Performance’s 454 HO crate engine is a Big-Block bargain – an affordable engine with performance specs that will make you think it’s 1970 all over again.



454 HO Tech Specs

  • Part Number: 19433409              
  • Engine Type: Chevy Big-Block V-8
  • Displacement (cu. in.): 454
  • Bore x Stroke (in.): 4.250 x 4.000
  • Block (P/N 19170538): Cast-iron with four-bolt main caps
  • Crankshaft (P/N 14096983): Forged steel
  • Connecting Rods (P/N 19170198): Forged steel
  • Pistons (P/N 10215228): Forged aluminum
  • Camshaft Type (P/N 24502611): Hydraulic roller
  • Camshaft Lift (in.): .510 intake / .540 exhaust
  • Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
  • Cylinder Heads (P/N 12562920): Iron rectangular port; 118-cc chambers
  • Valve Size (in.): 2.190 intake / 1.880 exhaust
  • Compression Ratio: 8.75:1
  • Rocker Arms (P/N 12523976): Stamped steel
  • Rocker Arm Ratio: 1.7:1
  • Water Pump (P/N 19168606): Cast-iron, long-style
  • Flexplate (P/N 10185034): 14"
  • Recommended Fuel: Premium pump
  • Ignition Timing: 36° Total @ 4,000 rpm
  • Maximum Recommended rpm: 5500
  • Balanced: External

Installation Notes:

Requires addition of carburetor, starter, fuel pump, distributor and ignition system (not included)

Clutch linkage bosses are now drilled and tapped. When using cast-iron exhaust manifolds, lower head bolts may need to be replaced with bots with shorter heads, for clearance

Comes with an externally balanced 14" automatic transmission flexplate: use flywheel PN 14096987 and 11" clutch assembly for manual transmission applications

Not inteneded for marine applications



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