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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 FLAT TOP Set of 8 Pistons JE Pistons 350 SBC FLAT TOP Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC FLAT TOP Set of 8 Pistons

$1,043.99
JEP116855
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 FLAT TOP Set of 8 Pistons JE Pistons 350 SBC FLAT TOP Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC FLAT TOP Set of 8 Pistons

$1,043.99
JEP105041
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 FLAT TOP Set of 8 Pistons JE Pistons 350 SBC FLAT TOP Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC FLAT TOP Set of 8 Pistons

$1,043.99
JEP105040
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 FLAT TOP (Left Side) *SINGLE PISTON ONLY* JE Pistons 350 SBC FLAT TOP (Left Side) *SINGLE PISTON ONLY* Quick View
JE Pistons

JE Pistons 350 SBC FLAT TOP (Left Side) *SINGLE PISTON ONLY*

$213.99
JEP105038L
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 350 SBC FLAT TOP Set of 8 Pistons JE Pistons 350 SBC FLAT TOP Set of 8 Pistons Quick View
JE Pistons

JE Pistons 350 SBC FLAT TOP Set of 8 Pistons

$1,043.99
JEP105038
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 Porsche 996 / 997 3.6L Twin Turbo 100mm Bore -25.5cc Dish 9.4:1 CR - Set of 6 JE Pistons Porsche 996 / 997 3.6L Twin Turbo 100mm Bore -25.5cc Dish 9.4:1 CR - Set of 6 Quick View
JE Pistons

JE Pistons Porsche 996 / 997 3.6L Twin Turbo 100mm Bore -25.5cc Dish 9.4:1 CR - Set of 6

$1,874.99
JEP362143
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 Ultra Series GM Gen III/IV LS 4.125in Bore/4in Stroke Set of 8 Pistons JE Pistons Ultra Series GM Gen III/IV LS 4.125in Bore/4in Stroke Set of 8 Pistons Quick View
JE Pistons

JE Pistons Ultra Series GM Gen III/IV LS 4.125in Bore/4in Stroke Set of 8 Pistons

$1,395.99
JEP361731
Engine Components JE Pistons Piston Sets - Forged - 8cyl
Ultra Series forged pistons from JE are the industry?s strongest, most fully featured pistons available off the shelf. Offered for a wide range of...
JE Pistons 2008+ VW TSI 2.0 Turbo Kit 83mm Bore .5 Size -7.8 Dome R Skirt Piston Kit (Set of 4) JE Pistons 2008+ VW TSI 2.0 Turbo Kit 83mm Bore .5 Size -7.8 Dome R Skirt Piston Kit (Set of 4) Quick View
JE Pistons

JE Pistons 2008+ VW TSI 2.0 Turbo Kit 83mm Bore .5 Size -7.8 Dome R Skirt Piston Kit (Set of 4)

$899.99
JEP329245
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 SUB STI EJ257 99.5mm Bore CR 9.5 KIT Set of 4 Pistons JE Pistons SUB STI EJ257 99.5mm Bore CR 9.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB STI EJ257 99.5mm Bore CR 9.5 KIT Set of 4 Pistons

$899.99
JEP310936
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 BMW S50B30US 11.5KIT Set of 6 Pistons JE Pistons BMW S50B30US 11.5KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons BMW S50B30US 11.5KIT Set of 6 Pistons

$1,324.99
JEP297182
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 SUB STI EJ257 100mm Bore CR 8.5 KIT Set of 4 Pistons JE Pistons SUB STI EJ257 100mm Bore CR 8.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB STI EJ257 100mm Bore CR 8.5 KIT Set of 4 Pistons

$899.99
JEP291062
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 2015+ Honda K20C 86.50mm Bore 10.5:1 CR 2.0cc Dome Piston Kit (Set of 4) JE Pistons 2015+ Honda K20C 86.50mm Bore 10.5:1 CR 2.0cc Dome Piston Kit (Set of 4) Quick View
JE Pistons

JE Pistons 2015+ Honda K20C 86.50mm Bore 10.5:1 CR 2.0cc Dome Piston Kit (Set of 4)

$899.99
JEP357426
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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