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SRP 139626

SRP Inverted Dome Pistons for Small Block Chevy 400 Bore 4.165"

SRP 139626
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867-139626 NEW

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SRP 139626 SRP Inverted Dome Pistons for Small Block Chevy 400 Bore 4.165" $589.03
SRP Inverted Dome Pistons
  • Small Block Chevy 400 (+.040")
  • Bore: 4.165"
  • Stroke: 3.750 (409ci)
  • Rod Length: 5.700"
  • Dome Volume: -21cc
  • Weight: 489 grams
  • Compression Height: 1.425"
  • 1/pkg

  • SRP 139626 Details

    400 Block with 3.750" Stroke

    Compression Ratios

    • 58cc 10.4:1
    • 64cc 9.8:1
    • 70cc 9.2:1 

    Ring Groove Sizes

    • Top Ring: 1/16"
    • Second Ring: 1/16"
    • Oil Ring: 3/16"


    Manufacturer's Part Number:

    Inverted dome utilizes radius tooling to eliminate hot spots. Symmetrical valve reliefs for universal installation. Valve reliefs cut for oversized valves and most street/strip camshafts. Lower ring lands and thicker crown for increased durability. High silicon alloy for tighter piston to wall clearance. Can be used in small blower and nitrous applications. .927'' x 2.750'' x .150'' straight wall carbon steel wristpin (130g) included. 1/16, 1/16, 3/16'' ring grooves.

    Some parts are not legal for use in California or other states with similar laws / regulations