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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 Chevy LS2 4.000in - 3.622in Stroke -14.3cc Dish Set of 8 Pistons JE Pistons Chevy LS2 4.000in - 3.622in Stroke -14.3cc Dish Set of 8 Pistons Quick View
JE Pistons

JE Pistons Chevy LS2 4.000in - 3.622in Stroke -14.3cc Dish Set of 8 Pistons

$936.99
JEP288003
Engine Components JE Pistons Piston Sets - Forged - 8cyl
SRP Professional pistons combine forged piston durability with modern performance technology for an extremely capable forged piston kit that doesn?t break the bank. Forged...
JE Pistons PORSCH 3.2L DM KIT Set of 6 Pistons JE Pistons PORSCH 3.2L DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.2L DM KIT Set of 6 Pistons

$1,475.99
JEP274644
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911
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 PORSCH 3.0LTR DM KIT Set of 6 Pistons JE Pistons PORSCH 3.0LTR DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.0LTR DM KIT Set of 6 Pistons

$1,475.99
JEP274638
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911
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 PORSCH 3.6LTR DM KIT Set of 6 Pistons JE Pistons PORSCH 3.6LTR DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.6LTR DM KIT Set of 6 Pistons

$1,475.99
JEP274636
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911
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 Ford 4.6L 2V Pro Kit FT JE Pistons Ford 4.6L 2V Pro Kit FT Quick View
JE Pistons

JE Pistons Ford 4.6L 2V Pro Kit FT

$839.99
JEP271106
Engine Components JE Pistons Piston Sets - Forged - 8cyl
SRP Professional pistons combine forged piston durability with modern performance technology for an extremely capable forged piston kit that doesn?t break the bank. Forged...
Photo - Primary Photo - out of package Quick View
JE Pistons

JE Pistons Small Block Ford 302 SRP PRO FT Kit

$892.99
JEP271099
Engine Components JE Pistons Piston Sets - Forged - 8cyl
SRP Professional pistons combine forged piston durability with modern performance technology for an extremely capable forged piston kit that doesn?t break the bank. Forged...
JE Pistons 454 BBC 33cc Dome - Set of 8 Pistons JE Pistons 454 BBC 33cc Dome - Set of 8 Pistons Quick View
JE Pistons

JE Pistons 454 BBC 33cc Dome - Set of 8 Pistons

$839.99
JEP152156
Engine Components JE Pistons Piston Sets - Forged - 8cyl
Born from the rich racing experience of JE Pistons, the Sportsman Racing Products (SRP) piston line proudly bridges the gap between high-quality forged piston...
Quick View
JE Pistons

JE Pistons Ring Sets 3.228in Bore .0394in Top / .0472in 2nd / .110in Oil - 1 Cylinder

$32.17
JEPHG1001-3228
Engine Components JE Pistons Piston Rings Under 100
JE Pistons Ring Sets 3.228in Bore .0394in Top / .0472in 2nd / .110in Oil - 1 Cylinder
JE Pistons .728in Dia .050in Thick Wire Lock Wrist Pin Retainer Quick View
JE Pistons

JE Pistons .728in Dia .050in Thick Wire Lock Wrist Pin Retainer

$3.99
JEP728-050-MW
Engine Components JE Pistons Piston Pins Under 100
Most JE shelf pistons include double spiro locks as standard equipment. These locks are installed by spreading the lock between 1/8" and 1/4" and...
JE Pistons Chevrolet LS Gen III/IV 4.005in Bore 1.300in CH -5.00 CC Piston Set JE Pistons Chevrolet LS Gen III/IV 4.005in Bore 1.300in CH -5.00 CC Piston Set Quick View
JE Pistons

JE Pistons Chevrolet LS Gen III/IV 4.005in Bore 1.300in CH -5.00 CC Piston Set

$839.99
JEP279590
Engine Components JE Pistons Piston Sets - Forged - 8cyl
SRP Professional pistons combine forged piston durability with modern performance technology for an extremely capable forged piston kit that doesn?t break the bank. Forged...
Quick View
JE Pistons

JE Pistons Chevrolet Big Block 4.530in Bore 1.270in CH -10.00 CC Piston - Single

$183.99
JEP212162S
Engine Components JE Pistons Pistons - Forged - Single
Born from the rich racing experience of JE Pistons, the Sportsman Racing Products (SRP) piston line proudly bridges the gap between high-quality forged piston...
Quick View
JE Pistons

JE Pistons Chevrolet Big Block 4.500in Bore 1.270in CH -10.00 CC Piston - Single

$183.99
JEP212161S
Engine Components JE Pistons Pistons - Forged - Single
Born from the rich racing experience of JE Pistons, the Sportsman Racing Products (SRP) piston line proudly bridges the gap between high-quality forged piston...
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