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With racing roots dating back over 70 years, JE Pistons is the industry leader in high-performance forged pistons. JE’s performance and quality is the result of decades of experience gained working with elite engine builders and racers from almost all types of motorsports competition, and is proven in our victories, championships, and innovations. JE controls every step of our manufacturing process, designing, forging, and machining all our pistons 100% in-house in our USA manufacturing facility. Find the perfect set of pistons for your next build off-the-shelf, or work with our technical experts to create a completely custom set.

JE History


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.

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3 days ago

What's new at JE? Come see first-hand this week atPerformance Racing Industryustry Show! Take a sneak peak at one of our latest piston kits fresh out of development 👀 👀

Booth 825 to see the latest in piston innovation!
... See MoreSee Less

Whats new at JE? Come see first-hand this week at the Performance Racing Industry Show! Take a sneak peak at one of our latest piston kits fresh out of development 👀 👀 

Booth 825 to see the latest in piston innovation!Image attachmentImage attachment
4 days ago

Some 540ci Big Block Chevy action from the @dm_engine_dynamics shop 🔧 #jepistons equipped and ready to make some big time boost. 🔥

#Reposted @dm_engine_dynamics
#je #forgedpistons #chevy #bigblock #bigblockchevy #racingpistons #supercharged #boost
... See MoreSee Less

Some 540ci Big Block Chevy action from the @dm_engine_dynamics shop 🔧 #JEpistons equipped and ready to make some big time boost. 🔥

#reposted @dm_engine_dynamics 
#JE #forgedpistons #chevy #bigblock #bigblockchevy #racingpistons #supercharged #boostImage attachmentImage attachment

3 CommentsComment on Facebook

Gandhy Toca Martinez

How much??¿??

1 week ago

Shelf stock not quite cutting it for your build? Starting today, save 20% on your rings with ANY custom piston order! Learn more and find our custom order form here: www.jepistons.com/custom-pistons/ ... See MoreSee Less

Shelf stock not quite cutting it for your build? Starting today, save 20% on your rings with ANY custom piston order! Learn more and find our custom order form here: https://www.jepistons.com/custom-pistons/Image attachmentImage attachment+1Image attachment
1 week ago

Whether it’s a performance upgrade or an all-out race build, the #JEpistons EcoBoost line is a definite performance step up from the factory replacements. Our lineup offers many upgrades and are available in numerous bore sizes and compression-ratio options.

What if you are looking to take your EcoBoost build to the next level? The range of possibilities for our custom pistons is second to none. We can design EcoBoost pistons to handle the most extreme environments, allowing the serious EcoBoost builders out there to push them to new limits!

Shop EcoBoost pistons now 👉 jepistons.com
... See MoreSee Less

Whether it’s a performance upgrade or an all-out race build, the #JEpistons EcoBoost line is a definite performance step up from the factory replacements. Our lineup offers many upgrades and are available in numerous bore sizes and compression-ratio options. 

What if you are looking to take your EcoBoost build to the next level? The range of possibilities for our custom pistons is second to none. We can design EcoBoost pistons to handle the most extreme environments, allowing the serious EcoBoost builders out there to push them to new limits!

Shop EcoBoost pistons now 👉 jepistons.comImage attachmentImage attachment+1Image attachment
1 week ago

Fresh set of S55 ready for @fastlane_gbr's next BMW build. This forged se#jepistonsstons will be a massive upgrade over the OEM piston#je
#forgedpistonss#racingpistonss#BMW #bmws55m#PoweredByJEdbyje
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Fresh set of S55 ready for @fastlane_gbrs next BMW build. This forged set of #JEpistons will be a massive upgrade over the OEM pistons 💪

#je #forgedpistons #racingpistons #bmw #bmws55 #poweredbyjeImage attachment
2 weeks ago

Up to 25% off your favorite JE Piston products this Black Friday, and the entire weekend! No promo code needed! 🎉🎁 Shop now 👉 jepistons.com ... See MoreSee Less

Up to 25% off your favorite JE Piston products this Black Friday, and the entire weekend! No promo code needed! 🎉🎁 Shop now 👉 jepistons.comImage attachmentImage attachment+1Image attachment
2 weeks ago

Thankful we get to do what we love with our friends and family who mean the most to us. 🍁🦃 Happy Thanksgiving from everyone here at JE! Don't forget our Black Friday sale is already live 📲 jepistons.com to get up to 25% off! ... See MoreSee Less

Thankful we get to do what we love with our friends and family who mean the most to us. 🍁🦃 Happy Thanksgiving from everyone here at JE! Dont forget our Black Friday sale is already live 📲 jepistons.com to get up to 25% off!Image attachmentImage attachment+1Image attachment

1 CommentComment on Facebook

Happy Thanksgiving ❤🤗

2 weeks ago

What makes our SRP Pro 2618 pistons special? Same great SRP piston, with the all-out strength of 2618 aluminum! The SRP line of pistons have proven strength and performance are possible on a budget, while the SRP Pro 2618 pistons take that all to a whole new level. Bringing the most strength we've ever seen to SRP 💪

Complete details about our SRP line here 👇
www.jepistons.com/je-auto-blog/budget-power-srp-srp-pro-and-srp-pro-2618-pistons/
... See MoreSee Less

What makes our SRP Pro 2618 pistons special? Same great SRP piston, with the all-out strength of 2618 aluminum! The SRP line of pistons have proven strength and performance are possible on a budget, while the SRP Pro 2618 pistons take that all to a whole new level. Bringing the most strength weve ever seen to SRP 💪

Complete details about our SRP line here 👇
https://www.jepistons.com/je-auto-blog/budget-power-srp-srp-pro-and-srp-pro-2618-pistons/Image attachmentImage attachment

3 CommentsComment on Facebook

What's the advantage of 2618 vs 4032?

Just recieved my SRP 383 pistons this week, I'm looking forward to this engine for our speedway racer

To bad they're never in stock

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