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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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5 days ago
JE Pistons

Two ✌️ podium appearances for Jeff Jones at the Grand Prix of Long Beach Super Drift Challenges. Proudly powered by a set of our Ultra Series LS pistons! #formualdrift #superdrift #jeffjonesracing #350Z #lsswap #jepistons ... See MoreSee Less

Two ✌️ podium appearances for @jeffjonesracing at the Grand Prix of Long Beach Super Drift Challenges. Proudly powered by a set of our Ultra Series LS pistons! #formualdrift #superdrift #jeffjonesracing #350z #lsswap #jepistonsImage attachmentImage attachment
6 days ago
JE Pistons

Double trouble for USMTS - United States Modified Touring Series as Brandon Davis doubled down and set the fastest qualifying lap both nights at the USMTS Spring Classic. Congrats Brandon and team 🏁 ... See MoreSee Less

Double trouble for USMTS - United States Modified Touring Series as Brandon Davis doubled down and set the fastest qualifying lap both nights at the USMTS Spring Classic. Congrats Brandon and team 🏁Image attachment
6 days ago
JE Pistons

Hats off to our friends from Proflo Performance on their latest blown LS build 👏 Topped with a 8/71 ready to feed a set of #jepistons some boost! #jepistons #Profloperformance #LS #blowermotor #ChevyPerformance #forgedpistons ... See MoreSee Less

Hats off to our friends from Proflo Performance on their latest blown LS build 👏 Topped with a 8/71 ready to feed a set of #jepistons some boost! #jepistons #profloperformance #LS #blowermotor #chevyperformance #forgedpistonsImage attachment
1 week ago
JE Pistons

#Didyouknow For the average person knowing that stock pistons are cast, race pistons are forged aluminum, and that's all that matters. In a perfect world this would be enough for most of us. But for us builders and racers, understanding the distinct advantages of the common alloys makes the 2618 alloy the clear choice for racing applications.

The 2618 alloy's exceptional high-temperature strength makes it the top choice for demanding racing, particularly sustained wide-open-throttle conditions. Its key advantage lies in its low silicon content, providing significantly greater malleability under high-load, high-stress scenarios, such as those involving power adders.

If you find yourself straddling the alloy fence, the good news is it’s difficult to make a bad decision when it comes to a forged piston.

#je #jepistons #forgedpistons #racingpistons #techtips #pistontech #enginetecch
... See MoreSee Less

#Didyouknow For the average person knowing that stock pistons are cast, race pistons are forged aluminum, and thats all that matters. In a perfect world this would be enough for most of us. But for us builders and racers, understanding the distinct advantages of the common alloys makes the 2618 alloy the clear choice for racing applications.

The 2618 alloys exceptional high-temperature strength makes it the top choice for demanding racing, particularly sustained wide-open-throttle conditions. Its key advantage lies in its low silicon content, providing significantly greater malleability under high-load, high-stress scenarios, such as those involving power adders.

If you find yourself straddling the alloy fence, the good news is it’s difficult to make a bad decision when it comes to a forged piston. 

#je #jepistons #forgedpistons #racingpistons #techtips #pistontech #enginetecchImage attachmentImage attachment+2Image attachment

9 CommentsComment on Facebook

do you do a High Comp piston that would suit a NA Barra

next step is selected forged pistons ! like in F1

When you add boost you need the good stuff

*made.

Are forged less hard than cast hence the malleability?

Quality equipment and more!!

Give me a price for a set of 8 custom pieces

Engine valve manufacturer WeChat:+8613803390950 WhatsApp:+8613803390950

Man porn right there ✊💦💦

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1 week ago
JE Pistons

Heads up! Friday (April 18th) we're out hunting for Easter eggs... aka, closed for Good Friday. Back Monday! Happy Easter from all of us at JE 🏁 ... See MoreSee Less

Heads up! Friday (April 18th) were out hunting for Easter eggs... aka, closed for Good Friday. Back Monday! Happy Easter from all of us at JE 🏁

1 CommentComment on Facebook

Happy Easter Matt, Vic,,and Kim 🐣🐰

1 week ago
JE Pistons

The next round of custom pistons receiving our treatment of thermal barrier crown coating. Because we handle all custom coatings internally, this allows us to fulfill all custom coating requests by only adding one to two days to your piston delivery schedule. Save time on your piston coating needs by letting us handle it in-house.

☎️ 1-714-898-9763
📧 [email protected]
... See MoreSee Less

The next round of custom pistons receiving our treatment of thermal barrier crown coating. Because we handle all custom coatings internally, this allows us to fulfill all custom coating requests by only adding one to two days to your piston delivery schedule. Save time on your piston coating needs by letting us handle it in-house. 

☎️ 1-714-898-9763
📧 orders@jepistons.comImage attachment

5 CommentsComment on Facebook

High speed impact with tungsten is not better than this coating? Any steel pistons available for diesel BMW ?

Never seen a single hp from these spray painted applications . Mostly all gone next time of inspection .

Fuckin vertically integrated cool kid pistons? That's awesome

That's fantastic!

Quality equipment and more!!

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2 weeks ago
JE Pistons

Rookiez Garage 6.0L LQ9 stuffed with a set of our #UltraSeries pistons, on its way to roasting some tires in drift action. If you're feeding your truck motor more boost than you probably should, and constantly hangin' it on the chip, then our Ultra Series LS pistons were designed specifically for you 🫵 jepistons.com to get your set on #drift #drifting #jepistons##jeultras#jee#horsepowerh#boostedr#enginebuildn#LSe#lq9d#rookiezgaragekiezgarage ... See MoreSee Less

@rookiezgarage 6.0L LQ9 stuffed with a set of our #ultraseries pistons, on its way to roasting some tires in drift action. If youre feeding your truck motor more boost than you probably should, and constantly hangin it on the chip, then our Ultra Series LS pistons were designed specifically for you 🫵 jepistons.com to get your set on order. 

 #drift #drifting #jepistons #jeultra #je #horsepower #boosted #enginebuild #ls #lq9 #rookiezgarageImage attachmentImage attachment

1 CommentComment on Facebook

I have an LQ4 that I'm taking apart to build a V8 Miata.

2 weeks ago
JE Pistons

Smeding Performance showing off the piston and rod combo for their 1,700hp-capable 427ci LS engine packages. The #jepistons used in these builds are forged from 2618 aluminum and feature our thermal barrier crown coating, perfect skirt skirt coating, and come with upgraded wrist pins.

Always happy to bring some of our best to Jacob and the Smeding Performance crew!
... See MoreSee Less

Smeding Performance showing off the piston and rod combo for their 1,700hp-capable 427ci LS engine packages. The #jepistons used in these builds are forged from 2618 aluminum and feature our thermal barrier crown coating, perfect skirt skirt coating, and come with upgraded wrist pins. 

Always happy to bring some of our best to Jacob and the Smeding Performance crew!Image attachment

1 CommentComment on Facebook

Quality equipment and more!!!

2 weeks ago
JE Pistons

Check out this rad 1968 c10 in the latest issue of Classic Truck Performance powered by a 396 equipped with a set of #jepistons 💪 We make Big Block Chevy pistons perfect suited for ripping up the asphalt to the 2,500hp mark and beyond! #je #forgedpistons #bigblockchevy #Chevrolet #c10 #classic #classictruckperformance #usamade ... See MoreSee Less

Check out this rad 1968 c10 in the latest issue of Classic Truck Performance powered by a 396 equipped with a set of #jepistons 💪 We make Big Block Chevy pistons perfect suited for ripping up the asphalt to the 2,500hp mark and beyond! #je #forgedpistons #bigblockchevy #chevrolet #c10 #classic #classictruckperformance #usamade
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