Piston Sets

Mahle MS Piston Set GM LS 403ci 4.005in Bore 4in Stroke 6.125in Rod .927 Pin -12cc 10.5 CR Set of 8

Mahle MS Piston Set GM LS 363ci 3.800in Bore 4in Stroke 6.125in Rod .927 Pin -4cc 11.1 CR Set of 8

LS 5.7L & 6.0L FLAT TOP – compatable with LS1/2/6 style cathedral port heads 348cid 3.908 x 1.340CH, 3.622stroke,6.098rod,0.945pin,-4.1cc,411g,10.2CR, 4032.

LS 5.7L & 6.0L FLAT TOP – compatable with LS1/2/6 style cathedral port heads 346cid 3.898 x 1.340CH, 3.622stroke,6.098rod,0.945pin,-4.1cc,407g,10.2CR, 4032.

LS 5.7L & 6.0L FLAT TOP – compatable with LS1/2/6 style cathedral port heads 348cid 3.908 x 1.314CH, 3.622stroke,6.125rod,0.927pin,-4.1cc,409g,10.2CR, 4032.

LS 5.7L & 6.0L FLAT TOP – compatable with LS1/2/6 style cathedral port heads 346cid 3.898 x 1.314CH, 3.622stroke,6.125rod,0.927pin,-4.1cc,406g,10.2CR, 4032.

Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applicationsDesigned specifically for each engine and use application to provide optimized performance durabilityProprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pinSkirt coating (depending on…

Designed for Power: Every feature on Ultra Series Pistons are optimized to perform high-horsepower racing enginesAligned Grain Flow Technology: Exclusively available on JE Ultra Series, this proprietary, in-house forging process maximizes tensile strength to withstand the stresses of high-performance engine environmentsSkirt Coating: Reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing…

2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.Exacting Ring Lands and Grooves: We adhere to strict standards…

2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.Exacting Ring Lands and Grooves: We adhere to strict standards…