Hypereutectic Piston Chevy 454ci 7.4L Big Block +040
Product Discontinued
SEALED POWERPART NUMBER: 844-H693CP40-1

Hypereutectic Piston Chevy 454ci 7.4L Big Block +040

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Big Block Chevy
    Hypereutectic Piston
  • Chevy 454ci 7.4L Big Block
  • 4.290" Bore (+.040)
  • +22.0cc Dome Top w/2 Valve Reliefs
  • 1/pkg.

    Technical Specs:
  • Material: Hypereutectic
  • Bore: 4.290' (108.966mm)
  • Piston Top: +22.0cc Dome Top w/2 Valve Reliefs, 0.230" Dome
  • Compression Height: 1.640"
  • Rod Length: 6.135"
  • Stroke: 4.000"
  • Compression Ring Groove: 5/64"
  • Second Ring Groove: 5/64"
  • Oil Ring Groove Width: 3/16"
  • Full Length: N/A
  • Pin Size: 0.990" O.D. (25.146mm)
  • Pin Type: Press-Fit or Floating
  • Skirt Type: DUROSHIELD Coated
  • Piston Skirt Clearance: 0.0015
  • Notes: Use Piston Ring p/n 844-E233X40 Standard Set; p/n 844-E233K40 Premium Moly Set; p/n 844-R9905.040 Plasma-Moly Performance Set (Rings Not Included).

    Add Strength and Power to Your Pistons

    Sealed Power Hypereutectic Pistons are built to exacting tolerances and feature an aluminum casting with an anti-friction skirt coating that is highly resistant to scuffing and wear. The Duroshield skirt helps improve fuel economy, doesn't require any additional clearance, extends piston life, and increases horsepower with less friction. These durable pistons operate with tight bore clearances and work perfectly with normal-range ring end gaps, making them great for street, bracket racing, and oval track applications.

Part TypePiston
Product LineSealed Power Hypereutectic Pistons
BrandSEALED POWER
Package Height5.0
Package Width5.0
Package Length5.0
Weight2.1 PG
Part CategoryPerformance Parts
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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