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Piston
Manley Small Block Chevy Ultra Lite ''Formula-Won'' Dish Top Pistons

Manley Small Block Chevy Ultra Lite ''Formula-Won'' Dish Top Pistons

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:

Based on Standard 4.000'' bore block
23° Head Applications
2618 High Strength Alloy
Super Lightweight Design for 525 HP and 8,000 RPM
Lateral Gas Ports Included
Round Wire Locks Included
Pressure Balance Groove
Perfect Ring Groove to Skirt Squareness
.927'' Dia. x 2.300'' Long x .095'' Wall Premium Chrome Moly Wrist Pin

Piston Common Specs:
Compression Ratio: 9.3:1 w/ 64cc Combustion Chamber & 3.48'' Stroke
Dome Volume: -14.5cc (Flat Top)
Crown Thickness: .155''
Ring Thickness: Top Ring - .043'' (.155'' down); Second Ring - .043''; Oil Ring - 3mm
Valve Notches: .300'' Intake, .215'' 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.