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JE Pistons

The origins of what we know today as JE Pistons can be traced back to 1912 and the Los Angeles foundry of William Jahns Sr. and his company W.H. Jahns. Employing the tagline, “Nothing but Pistons,” the W.H. Jahns company produced pistons and semi-finished pistons until 1948, when Jahns Sr. retired. Meanwhile, Jahns’ son, William “Uncle Bill” Jahns Jr., started and had been working on his company Jahns’ Racing Pistons since 1947. Shortly after, the business became Jahns’ Engineering Pistons, and was finally shortened to JE Pistons.

Through the following years, JE Pistons’ technology evolved, from mastering casting technology in the 60s to researching and implementing forging technology in the 70s. Numerical Controlled (NC) machines were introduced to manufacturing in the early 80s, which was quickly improved to the use of Computer Numerical Controlled (CNC) machines and a proprietary piston design and machining program in the mid-80s.

JE Pistons has continued to evolve their manufacturing processes, currently offering racing pistons either off the shelf or fully custom. JE pistons are all designed, forged, and machined in-house, allowing control over every step of the piston-making process. JE’s 7+ decades of experience in high-level racing has led to offering premium racing features, including full billet construction, EN plating, and purpose-designed coatings, to name a few.

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JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons

$1,176.99
JEP300250
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons

$1,176.99
JEP300249
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons

$1,176.99
JEP300248
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons

$1,176.99
JEP300247
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons

$1,176.99
JEP300246
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC SPRFLY WT FT Set of 8 Pistons

$1,176.99
JEP300245
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons Hyundai 3.8L 3.799 Bore 1.242 CD Pistons - Single - Right JE Pistons Hyundai 3.8L 3.799 Bore 1.242 CD Pistons - Single - Right Quick View
JE Pistons

JE Pistons Hyundai 3.8L 3.799 Bore 1.242 CD Pistons - Single - Right

$299.99
JEP299816R
Engine Components JE Pistons Piston Sets - Forged - 6cyl Pistons - Forged - Single
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...
JE Pistons Hyundai Genesis 3.8L 96mm Bore CR 9:1 Right Side Single Piston JE Pistons Hyundai Genesis 3.8L 96mm Bore CR 9:1 Right Side Single Piston Quick View
JE Pistons

JE Pistons Hyundai Genesis 3.8L 96mm Bore CR 9:1 Right Side Single Piston

$299.99
JEP299815R
Engine Components JE Pistons Pistons - Forged - Single
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...
JE Pistons Hyundai Genesis 3.8L 96mm Bore CR 9:1 Left Side Single Piston JE Pistons Hyundai Genesis 3.8L 96mm Bore CR 9:1 Left Side Single Piston Quick View
JE Pistons

JE Pistons Hyundai Genesis 3.8L 96mm Bore CR 9:1 Left Side Single Piston

$299.99
JEP299815L
Engine Components JE Pistons Pistons - Forged - Single
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...
JE Pistons CHRY SRT4 2.4L KIT Set of 4 Pistons JE Pistons CHRY SRT4 2.4L KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons CHRY SRT4 2.4L KIT Set of 4 Pistons

$899.99
JEP299205
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons HYUNDAI 2.0T 9:1 KIT Single Piston JE Pistons HYUNDAI 2.0T 9:1 KIT Single Piston Quick View
JE Pistons

JE Pistons HYUNDAI 2.0T 9:1 KIT Single Piston

$299.99
JEP298946S
Engine Components JE Pistons Pistons - Forged - Single
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...
JE Pistons OPEL C20XE 10.5KIT Set of 4 Pistons JE Pistons OPEL C20XE 10.5KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons OPEL C20XE 10.5KIT Set of 4 Pistons

$899.99
JEP298740
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
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