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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

JE Pro Seal BMW M30B35 3.630in 0.039in Head Gasket

$518.92
JEPBM1001-079
Engine Components Head Gaskets JE Pistons
JE Pro Seal BMW M30B35 3.630in 0.039in Head Gasket
JE Pistons Straight Wall Pin - .927 x 2.750 x .180W Quick View
JE Pistons

JE Pistons Straight Wall Pin - .927 x 2.750 x .180W

$36.99
JEP927-2750-18-52S
Engine Components JE Pistons Piston Pins Under 100
JE Pistons Straight Wall Pin - .927 x 2.750 x .180W
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JE Pistons

JE Pistons .912 x 2.750 x .175 Wall H13 Pin

$36.99
JEP912-2750-18-TSS
Engine Components JE Pistons Piston Pins Under 100
JE Pistons .912 x 2.750 x .175 Wall H13 Pin
Photo - Primary Quick View
JE Pistons

JE Pistons .905 x 2.500 x .210W Straight Wall Pin

$36.99
JEP905-2500-21-93C
Engine Components JE Pistons Piston Pins Under 100
Piston Wrist Pin, 9310 Nickel Carbon Steel Alloy, 0.905 in. Diameter, 2.500 in. Length, 0.210 in. Wall, Chamfered End, Each.
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JE Pistons

JE Pistons .866 x 2.250 x 180W Straight Wall Pin

$65.99
JEP866-2250-18-93C
Engine Components JE Pistons Piston Pins Under 100
JE Pistons .866 x 2.250 x 180W Straight Wall Pin
JE Pistons Straight Wall Carbon Steel DLC Pin .866in Outside Diameter Quick View
JE Pistons

JE Pistons Straight Wall Carbon Steel DLC Pin .866in Outside Diameter

$99.99
JEP866-2250-17-94C
Engine Components JE Pistons Piston Pins Under 100
JE Pistons Straight Wall Carbon Steel DLC Pin .866in Outside Diameter
JE Pistons GM LS3 LS4 Stroker SRP Pro 2618 Pistons - Set of 8 JE Pistons GM LS3 LS4 Stroker SRP Pro 2618 Pistons - Set of 8 Quick View
JE Pistons

JE Pistons GM LS3 LS4 Stroker SRP Pro 2618 Pistons - Set of 8

$936.99
JEP361004
Engine Components JE Pistons Piston Sets - Forged - 8cyl
JE Pistons SRP Pro 2618 line expands on the premium features of the SRP Pro series with the addition of extremely strong, 2618 forged...
Photo - Primary User 5 Quick View
JE Pistons

JE Pistons GM LS 4.070in Bore .010 LS3 SRP Pro 2618 Inverted Dome/Dish Pistons - Set of 8

$936.99
JEP360995
Engine Components JE Pistons Piston Sets - Forged - 8cyl
JE Pistons SRP Pro 2618 line expands on the premium features of the SRP Pro series with the addition of extremely strong, 2618 forged...
Photo - Primary User 3 Quick View
JE Pistons

JE Pistons Toyota 4U-GSE 86.25mm Bore +.25mm Oversize 12.5:1 CR -1.3cc Dome FSR Piston (Set of 4)

$899.99
JEP359153
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...
Photo - Primary User 3 Quick View
JE Pistons

JE Piston Porsche 911 3.0L (STD Size) 95mm Bore 70.4mm Stroke 10.5:1 C/R Piston Kit - Set of 6

$1,874.99
JEP353247
Engine Components JE Pistons Piston Sets - Forged - 6cyl
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 602 SBC CRATE KIT 4005-3480-5700-1560 JE Pistons 602 SBC CRATE KIT 4005-3480-5700-1560 Quick View
JE Pistons

JE Pistons 602 SBC CRATE KIT 4005-3480-5700-1560

$892.99
JEP324858
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...
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JE Pistons

JE Pistons Opel OPC 1.6L 16V 79.0mm Bore 3.2cc Dome Pistons - Set of 4

$929.99
JEP315101
Engine Components JE Pistons Piston Sets - Forged - 4cyl
JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to...
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