Mahle PowerPak Piston Kits Product images may differ from actual product appearance. The Mahle PowerPak is a complete race-proven piston assembly kit composed of hand deburred, forged, performance coated pistons, high-quality steel pins, round wire locks and low drag performance rings. It may seem crazy, but you really can get 8, 14, or even 22 more HP with Mahle pistons and rings. The secret is in Mahle's ultra flat ring grooves and low drag rings. Improved sealing minimizes parasitic drag to create ''free'' horsepower. Performance coatings include a phosphate dry lubricant (not to be confused with a thermal film coating) that is used to protect against ring micro-welding and pin galling during initial startup and break-in. For additional performance, Mahle applies its proprietary Grafal anti-friction coating to each piston skirt. Features Forged Aluminum Pistons CNC-machined crown Hand deburred finishing Forced pin oiling with machined drain backs Lightweight slipper skirt forgings CNC-finished pin bores Forced Pin Oiling Reliable round wire locks standard with every kit Pre-fitted German steel pins noted for their high strength, light weight, and durability Phosphate coating is a dry lubricant that provides Mahle pistons' grey appearance Piston crown remains machinable Mahle's Grafal skirt coating reduces piston noise, drag, scuffing, friction, and cylinder bore wear Horsepower Comparison Chart Click To Enlarge Applications BB-Chevy Click Here SB-Chevy Click Here SB-Ford Click Here Ford 4.6L/5.4L Modular Click Here

644-SBC125030D11

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' +11cc Dome Volume Compression Ratio @64cc: 13:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC125030D11

$720.99 Ships

644-SBC125030I26

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -26cc Inverted Dome Compression Ratio @64cc: 8.4/9:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC125030I26

$720.99 Ships

644-SBC125155D-1

SB-Chevy PowerPak Piston Ring Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.155'' Pin Diameter: .927'' +11cc Dome Volume Compression Ratio @64cc: 14.7:1 Each More info on Mahle SBC125155D-1

$94.99 Ships

644-SBC125155D11

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.155'' Pin Diameter: .927'' +11cc Dome Volume Compression Ratio @64cc: 14.7:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC125155D11

$720.99 Ships

644-SBC250030D11

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' +11cc Dome Volume Compression Ratio @ 64cc: 13:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC250030D11

$720.99 Ships 06/06/12

644-SBC250030I20

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -20cc Dome Volume Compression Ratio @64cc: 9:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC250030I20

$720.99 Ships 06/06/12

644-SBC250030I26

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -26cc Inverted Dome Volume Compression Ratio @64cc: 8:4 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC250030I26

$720.99 Ships 06/06/12

644-SBC425040D11

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.040'' Pin Diameter: .927'' +11cc Dome Volume Compression Ratio @64cc: 13:8 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC425040D11

$720.99 Ships 06/06/12

644-SBC550030D11

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' +11cc Dome Volume Compression Ratio @ 64cc: 13:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC550030D11

$720.99 Ships 06/06/12

644-LS1314005F04

SB-Chevy PowerPak Piston Kit Forged Aluminum Bore: 4.005'' Pin Diameter: .927'' -4cc Dome Volume Compression Ratio @ 64cc: 10:5 Precision Ring Grooves for Included 1.5mm, 1.5mm, 3.0mm Rings More info on Mahle LS1314005F04

$665.99 Ships

644-LS1314030F04

SB-Chevy PowerPak Piston Kit Forged Aluminum Bore: 4.030'' Pin Diameter: .927'' -4cc Dome Volume Compression Ratio @ 64cc: 10:1 Precision Ring Grooves for Included 1.5mm, 1.5mm, 3.0mm Rings More info on Mahle LS1314030F04

$665.99 Ships

644-SBC000030F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @64cc: 11.8:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC000030F05

$728.99 Ships 06/06/12

644-SBC000155F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.155'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @64cc: 11.3:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC000155F05

$728.99 Ships 06/06/12

644-SBC125030F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 11.3:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC125030F05

$651.99 Ships

644-SBC125060F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.060'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 11.3:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC125060F05

$651.99 Ships 06/06/12

644-SBC125165F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.165'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 11.8:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC125165F05

$651.99 Ships 06/06/12

644-SBC250030F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 10.6:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC250030F05

$651.99 Ships 06/06/12

644-SBC250060F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.060'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 10.6:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC250060F05

$651.99 Ships 06/06/12

644-SBC250155F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.155'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 11:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC250155F05

$651.99 Ships 06/06/12

644-SBC425030F05

SB-Chevy PowerPak Piston Kit Forged Aluminum Bore: 4.030'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 11:1 Precision Ring Grooves for Included 1.5mm, 1.5mm, 3.0mm Rings More info on Mahle SBC425030F05

$651.99 Ships 06/06/12

644-SBC550060F05

SB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.060'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 10.6:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC550060F05

$651.99 Ships 06/06/12

644-SBC425155F05

SB-Chevy 400 PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.155'' Pin Diameter: .927'' -5cc Dome Volume Compression Ratio @ 64cc: 11.8:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBC425155F05

$651.99 Ships 06/06/12

644-BBC270310D43

BB-Chevy PowerPak Piston Kit Forged Aluminum Bore: 4.310'' Pin Diameter: .990'' -43cc Dome Volume Compression Ratio @ 118cc: 13:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC270310D43

$805.99 Ships 06/06/12

644-BBC270310D48

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.310'' Pin Diameter: .990'' +48cc Dome Volume Compression Ratio: 13.7:1 More info on Mahle BBC270310D48

$805.99 Ships 06/06/12

644-BBC270350D43

BB-Chevy PowerPak Piston Kit Forged Aluminum Bore: 4.350'' Pin Diameter: .990'' -43cc Dome Volume Compression Ratio @ 118cc: 13:2 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC270350D43

$805.99 Ships

644-BBC270350D48

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.350'' Pin Diameter: .990'' +48cc Dome Volume Compression Ratio: 14.0:1 More info on Mahle BBC270350D48

$805.99 Ships 06/06/12

644-BBC270500D13

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.500'' Pin Diameter: .990'' +13cc Dome Volume Compression Ratio @ 118cc: 10.5:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC270500D13

$805.99 Ships 06/06/12

644-BBC270500D38

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.500'' Pin Diameter: .990'' +38cc Dome Volume Compression Ratio @ 118cc: 13.7:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC270500D38

$805.99 Ships 06/06/12

644-BBC395280D28

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.280'' Pin Diameter: .990'' +28cc Dome Volume Compression Ratio @ 118cc: 10.5:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC395280D28

$757.99 Ships 06/06/12

644-BBC395280D48

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.280'' Pin Diameter: .990'' +48cc Dome Volume Compression Ratio @ 118cc: 12.5:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC395280D48

$757.99 Ships 06/06/12

644-BBC395310D28

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.310'' Pin Diameter: .990'' +28cc Dome Volume Compression Ratio @ 118cc: 10.6:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC395310D28

$757.99 Ships 06/06/12

644-BBC395310D48

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.310'' Pin Diameter: .990'' +48cc Dome Volume Compression Ratio @ 118cc: 13:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC395310D48

$757.99 Ships 06/06/12

644-BBC645280D28

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.280'' Pin Diameter: .990'' +28cc Dome Volume Compression Ratio @ 118cc: 10.5:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC645280D28

$757.99 Ships 06/06/12

644-BBC645280D48

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.280'' Pin Diameter: .990'' +48cc Dome Volume Compression Ratio @ 118cc: 12.9:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC645280D48

$757.99 Ships

644-BBC645310D28

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.310'' Pin Diameter: .990'' +28cc Dome Volume Compression Ratio @ 118cc: 10.6:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC645310D28

$757.99 Ships

644-BBC645310D48

BB-Chevy PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 4.310'' Pin Diameter: .990'' -48cc Dome Volume Compression Ratio @ 118cc: 13:0 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC645310D48

$757.99 Ships

644-BBC228310F03

BB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.310'' Pin Diameter: .990'' -3cc Dome Volume Compression Ratio: 9.0:1 More info on Mahle BBC228310F03

$774.99 Ships 06/06/12

644-BBC270500F03

BB-Chevy PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.500'' Pin Diameter: .990'' -3cc Dome Volume Compression Ratio: 9.5:1 Precision Ring Grooves for Included 1/16'', 1/16'', 3/16'' Rings More info on Mahle BBC270500F03

$728.99 Ships 06/06/12

644-SBF090030F06

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' 0cc Dome Volume Compression Ratio @ 64cc: 10.8:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF090030F06

$728.99 Ships 06/06/12

644-SBF165030F06

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -6.6cc Dome Volume Compression Ratio @ 64cc: 9.6:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF165030F06

$651.99 Ships

644-SBF245040F00

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.040'' Pin Diameter: .927'' 0cc Dome Volume Compression Ratio @ 64cc: 11:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF245040F00

$601.99 Ships 06/06/12

644-SBF245060F06

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.060'' Pin Diameter: .927'' -6.6cc Dome Volume Compression Ratio @ 64cc: 10:4 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Ring More info on Mahle SBF245060F06

$651.99 Ships

644-SBF600030F06

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .912'' -6.6cc Dome Volume Compression Ratio @ 64cc: 9:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF600030F06

$651.99 Ships 06/06/12

644-SBF090030I16

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -16cc Dome Volume Compression Ratio @ 64cc: 9.0:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF090030I16

$795.99 Ships 06/06/12

644-SBF165030I16

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .927'' -16cc Dome Volume Compression Ratio @ 64cc: 8.7:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF165030I16

$722.99 Ships 06/06/12

644-SBF245040I26

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.040'' Pin Diameter: .927'' -26cc Dome Volume Compression Ratio @ 64cc: 8.4:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF245040I26

$722.99 Ships 06/06/12

644-SBF600030I26

SB-Ford PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 4.030'' Pin Diameter: .912'' -26cc Dome Volume Compression Ratio @ 64cc: 9:1 Precision Ring Grooves for Included 1.5, 1.5, 3.0mm Rings More info on Mahle SBF600030I26

$722.99 Ships 06/06/12

644-MOD220571F00

4.6/5.4 Modular Ford PowerPak Piston Kit Forged 4032 High Strength Aluminum Alloy Bore: 3.571'' Pin Diameter: .866'' 0cc Dome Volume Compression Ratio @ 46cc: 11.5:1 Precision Ring Grooves for Included 1..5, 1.5, 3.0mm Rings More info on Mahle MOD220571F00

$651.99 Ships 06/06/12

644-MOD220571I16

4.6/5.4 Modular Ford PowerPak Piston Kit Forged 4032 High Strength Aluminum Alloy Bore: 3.571'' Pin Diameter: .866'' -16cc Dome Volume Compression Ratio @ 46cc: 9:1 Precision Ring Grooves for Included 1..5, 1.5, 3.0mm Rings More info on Mahle MOD220571I16

$722.99 Ships

644-M4V167630P13

5.0L Ford Modular 4-Valve PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 3.630'' Pin Diameter: .866'' -13cc Dome Volume Compression Ratio: 9.0:1 More info on Mahle M4V167630P13

$849.99 Ships 06/06/12

644-M4V167630X10

5.0L Ford Modular 4-Valve PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 3.630'' Pin Diameter: .866'' +10cc Dome Volume Compression Ratio: 12.5:1 More info on Mahle M4V167630X10

$849.99 Ships 06/06/12

644-M4V167650D03

5.0L Ford Modular 4-Valve PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.650'' Pin Diameter: .866'' +3cc Dome Volume Compression Ratio: 11.3:1 More info on Mahle M4V167650D03

$722.99 Ships 06/06/12

644-M4V167650P13

5.0L Ford Modular 4-Valve PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 3.650'' Pin Diameter: .866'' -13cc Dome Volume Compression Ratio: 9.1:1 More info on Mahle M4V167650P13

$849.99 Ships 06/06/12

644-M4V167650X10

5.0L Ford Modular 4-Valve PowerPak Piston Kit Forged 2618 High Strength Aluminum Alloy Bore: 3.650'' Pin Diameter: .866'' +10cc Dome Volume Compression Ratio: 12.6:1 More info on Mahle M4V167650X10

$849.99 Ships 06/06/12

644-FFH313312D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.312'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.5:1 More info on Mahle FFH313312D13

$590.99 Ships 06/06/12

644-FFH313342D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.342'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.6:1 More info on Mahle FFH313342D13

$590.99 Ships 06/06/12

644-FFH313375D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.375'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.8:1 More info on Mahle FFH313375D13

$590.99 Ships 06/06/12

644-FFH375342D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.342'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.4:1 More info on Mahle FFH375342D13

$590.99 Ships 06/06/12

644-FFH375375D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.375'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.6:1 More info on Mahle FFH375375D13

$590.99 Ships 06/06/12

644-FFH438312D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.312'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.0:1 More info on Mahle FFH438312D13

$590.99 Ships 06/06/12

644-FFH438342D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.342'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.1:1 More info on Mahle FFH438342D13

$590.99 Ships 06/06/12

644-FFH438375D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.375'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.3:1 More info on Mahle FFH438375D13

$590.99 Ships 06/06/12

644-FFH375312D13

Ford Flathead - 3/16'' (.187'') Standard Dome PowerPak Piston Kit Forged 4032 High Silicone Low Expansion Aluminum Alloy Bore: 3.312'' Pin Diameter: .750'' +13cc Dome Volume Compression Ratio: 9.2:1 More info on Mahle FFH375312D13

$590.99 Ships 06/06/12