2 Barrel Class Pistons SB-Chevy

Name: 2 Barrel Class Pistons SB-Chevy
Brand: MANLEY
SKU: 660-591130L-1
Price: 102.10 USD
Availability: InStock

^$102¹⁰

Ships on 09/28/2026

Lowest Price Guarantee

Flat Top Pistons

Gas Ported .043'', .043'', 3mm Ring Grooves

6.000'' Rod Length

3.480'' - 3.500'' Stroke

SB-Chevy
Flat Top -2.5cc
4.030'' Bore (+.030'')
6.000'' Rod Length with 3.480-3.500'' Stroke
1.250'' Comp. Height
.043'', .043'', 3mm Ring Grooves
Left Side, 1/pkg.

Technical Specs:
Compression Height: 1.250'
Piston & Pin Weight: 472 grams
Flat Top: -2.5cc valve reliefs
Pin Size: 0.927' dia, 2.300' long, .095' wall
Round Wire Locks: .061'
Ring Grooves: Gas Ported .043' Top; .043' Middle; 3mm Bottom
Piston Clearance: .005' measured 1.100' from bottom of the oil ring
Valve Notches: .210' Intake, .150' Exhaust

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 Manley's top quality pistons and connecting rods.

Features:

Designed for 2 Barrel Class Racing
Based on Standard 4.000'' bore block
23° Head 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
Semi-Banded Skirt for Improved Skirt Stability
.927'' Dia. x 2.300'' Long x .095'' Wall Premium Chrome Moly Wrist Pin

Piston Common Specs:

Flat Top Compression Ratio: 10.6:1 w/ 64cc Combustion Chamber & 3.48'' Stroke
Dome Volume: -2.5cc (Flat Top)
Crown Thickness: .155''
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: .210'' Intake, .150'' Exhaust
Maximum Valve Sizes: 2.125'' Intake; 1.650'' Exhaust
Valve Angle: 22°
Pin Included: Premium Chrome Moly .927'' dia, 2.300'' long, .095'' 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.

Part TypePiston

Product LineManley Small Block Chevy ''2 Barrel Class'' Flat Top Pistons

BrandMANLEY

Package Height4.25

Package Width5.5

Package Length7.75

Weight1.25 PG

Part FitmentDirect Fit

Vendor Part Number591130L-1

Package Qty1

Package TypeEA