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Manley 590630R-1

4 Barrel Class Piston SB-Chevy

Manley 590630R-1
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660-590630R-1

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Manley 590630R-1 4 Barrel Class Piston SB-Chevy $91.99
4 Barrel Class Piston
  • SB-Chevy
  • Flat Top -4.0cc
  • 4.030'' Bore (+.030'')
  • 6.000'' Rod Length with 3.480-3.500'' Stroke
  • 1.250'' Comp. Height
  • 1/16'', 1/16'', 3/16'' Ring Grooves
  • Right Side, 1/pkg.

  • Manley 590630R-1 Details

    Flat Top Pistons

  • 1/16'', 1/16'', 3/16'' Ring Grooves
  • 6.000'' Rod Length
  • 3.480'' - 3.500'' Stroke
  • Technical Specs:
  • Compression Height: 1.250''
  • Piston & Pin Weight: 510 grams
  • Flat Top: -4.0cc valve reliefs
  • Pin Size: 0.927'' dia, 2.300'' long, .130'' wall
  • Round Wire Locks: .061''
  • Ring Grooves: 1/16'' Top; 1/16'' Middle; 3/16'' Bottom
  • Piston Clearance: .005'' measured 1.100'' from bottom of the oil ring
  • Valve Notches: .300'' Intake, .190'' Exhaust

  • Specifications:

    Manufacturer's Part Number:
    590630R-1

    Platinum Series Pistons

    Professional engine builders and elite tuners around the world are running Manley pistons for some very good reasons. Manley uses domestic 2618 high strength alloy forgings and unique (to Manley) fixturing allowing skirt turning / ring groove machining be performed in one single operation to ensure the ultimate ring groove to skirt squareness for better ring seal. Cam and barrel (skirt) profiles that make power but are friendly on the cylinder walls. Manley is well known for their high quality valvetrain components, but insiders also trust and use Manleys top quality pistons and connecting rods.

    Features:
  • Designed for 4 Barrel Class Racing
  • Based on Standard 4.000'' bore block
  • 23° Head Applications
  • Lightweight Design
  • Slightly thicker deck (.185'') for higher horsepower applications
  • 2618 High Strength Alloy
  • 1/16'', 1/16'', 3/16'' Ring Grooves or Gas Ported .043'', .043'', 3mm Ring Grooves
  • Perfect Ring Groove to Skirt Squareness
  • Round Wire Locks Included
  • Pressure Balance Groove
  • Full Banded Skirt design for Increased Skirt Stability
  • .927'' Dia. x 2.300'' Long x .130'' Wall Premium Chrome Moly Wrist Pin

    Piston Common Specs:
  • Flat Top Compression Ratio: 10.4:1 w/ 64cc Combustion Chamber & 3.48'' Stroke
  • Dome Volume: -4.0cc (Flat Top)
  • Crown Thickness: .185''
  • Ring Thickness: Top Ring - 1/16'' or .043'' Gas Ported (.155'' down); Second Ring - 1/16'' or .043''; Oil Ring - 3/16'' or 3mm
  • Valve Notches: .300'' Intake, .190'' Exhaust
  • Maximum Fly Cut: .360'' Intake, .260'' Exhaust
  • Maximum Valve Sizes: 2.125'' Intake; 1.650'' Exhaust
  • Valve Angle: 22°
  • Pin Included: Premium Chrome Moly .927'' dia, 2.300'' long, .130'' wall
  • Round Wire Locks: .061'' wide
  • Recommended Piston Clearance: .005'' measured 1.100'' from bottom of the oil ring

    Technical Note: Compression ratios are calculated at .005'' deck clearance, a 4.060'' head gasket I.D. with a .040'' compressed thickness.

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