SKU: 61345828732

Pre-Order Jormungandr - long rod 372xp to 390xp piston

$22.50 $25.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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Description

Pre-Order Jormungandr - long rod 372xp to 390xp pistonThis is the new 372 to 390 upgrade piston that Mark designed to utilize an OEM 592xp rod for the ultimate big torque in a small chassis works or races, depending on how it is built. Check out his videos on the origin of this design on his YouTube channel here: https: youtu. be YcpZ IkTp Msi=JoAY2BOOS6SKNrYl https: youtu. be tRThfyG0urAsi=SsjBgBtBFq6EBiuX https: youtu. be Nk7YLc_SN 4? si=yuTFj7DT220TuX3B This model will use a modified 372xp crankshaft

This is the new 372 to 390 upgrade piston that Mark designed to utilize an OEM 592xp rod for the ultimate big torque in a small chassis works or races, depending on how it is built.

Check out his videos on the origin of this design on his YouTube channel here:

https://youtu.be/YcpZ-IkTp-Msi=JoAY2BOOS6SKNrYl

https://youtu.be/tRThfyG0urAsi=SsjBgBtBFq6EBiuX

https://youtu.be/Nk7YLc_SN-4?si=yuTFj7DT220TuX3B

This model will use a modified 372xp crankshaft with a 592 xp rod.

This build should be considered Expert Level, it is involved and should result in a Monster.

Design specs were submitted to Wiseco on March 23rd, 2026.

Updates will be posted here as we get them from Wiseco, including anticipated finished weight.

This design uses a tapered OEM Stihl piston Pin (the lightest and strongest available), a 1mm Japanese NPR ring and Wiseco circlips.  The ring and circlips are included, the pin is NOT, but can be ordered from us separately if needed.  The rod is sold separately and we will list it as an item shortly.

Full Price:   $188.45

Pre-order Deposit: $25.00

Balance:  $163.45 +$5.00 shipping in the USA.

How it works - you order and pay the pre-order for each piston you intend to buy ($25), when we get the design print and specs from Wiseco they will be posted here.  The number of pre-orders will let us know if we need to increase our order size before they manufacture the pistons.  When the pistons are ready to ship to us, we will send all of the pre-order customers an e-mail letting them know it is time to pay the balance.  That should give everyone a few days or so to get paid up so that when the pistons arrive, we can inspect them and ship them out within a day or two of getting them.  If we work the timing right, you should be able to watch the next series of videos on the Dragon Build with your freshly forged piston in hand.

USA shipping will be a flat rate $5 on the Balance, no shipping on the pre-order.  I will figure out a price on the Canada shipping as time gets closer bu tit will be similarly inexpensive.  For any other non US/Canada customers, send me an e-mail to [email protected]. and we will try to get you figured out, I will not be allowing open international orders.  please do not wait to the last minute for international requests, so I have time to create a specific listing for you with a good shipping price.

 

please note: Pokemon card not included

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61345828732

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4.4 ★★★★★
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A. Parker
Los Angeles, US
★★★★★ 5
Can't Copy Carhartt
Color: Carhartt Brown (Bifold), Color: Carhartt Brown (Bifold)
I just received it but I like it so far. Replaced a 12-year-old Carhartt wallet that didn't have RFID protection. Mink oil turns it into a pleasing chestnut, FYSA
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Reviewed in the United States on April 17, 2026
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Amazon Customer
Waukegan, US
★★★★★ 5
My two cent review
Color: Carhartt Brown (Trifold)
Great quality material and pleasing to the touch. Perfect size for front or back pocket. Nice style and neutral color makes it versatile no matter your style of choice.
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Reviewed in the United States on April 14, 2026
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Mark A. Ordal
Lowell, US
★★★★★ 4
Overall a nice wallet
Color: Carhartt Brown (Trifold)
The card slots are a little tight so removing cards can be a hassle. On the other hand, cards won’t fall out if you invert the wallet. I expect the card slots to loosen up with prolonged use. The wallet is great in all other respects.
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Reviewed in the United States on December 12, 2025
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@photobrow
Natrona Heights, US
★★★★★ 5
Compared to g-shock?
Color: Black/Yellow
Firstly random public reviews can be comical…”it’s has a battery, terrible, One star” or “I don’t like yellow, one star” omg peoples do better. I’ll review this while comparing to an older style of g-shock from the same era. I’ll start by saying this timex rocks, for me in my mid 50’s it’s so retro and nastalgic, brings back memories, I may have even owned this model back in the day. What’s great about it- the display, larger digits than the typical g-shock and they are super crisp, clear and easy to read. The indiglo is awesome. This is the most accurate quartz watch I have aside from the atomic g-shocks that adjust themselves daily. I prefer a chunky watch and the g-shocks do a better job in that department. i feel this watch is rugged, but I’d still give the nod to g-shock in this department. 200M water resistance is the gold standard and this watch has it which I love for peace of mind for any water based activities. This is a 5 star watch at a great price. I still love some aspects of a g-shock better but its just preference.
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Reviewed in the United States on February 11, 2026
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Verified Purchase
Tanya
Pawtucket, US
★★★★★ 5
Everybody loved the high-tech style and amazing functionality
Color: Black/Yellow
I'm not a Timex fanboy, and I've had my fair share of problems with the Expedition line, so this review is my honest opinion as a man who's worn Armitrons and Timexes since I was 10. I remember in 1992 when the Timex Ironman Triathlon with Indiglo was first launched - My older brother got one, then me and my neighbor friends. Everybody loved the high-tech style and amazing functionality. Even Bill Clinton was rock'n this watch, for those who don't remember. Quite simply, this is the perfect watch at a great price, in my opinion. Perfect as a gift for any man, and I think the original black/olive drab/yellow coloration is still the coolest. In this day and age of smartphones, it still pays to have this watch. The alarm is less annoying sounding than a cellphone, and doesn't wake up the entire house. To turn it off, just tap the watch, no more reaching for the phone or alarm clock. Timer comes in handy for anything; timing my kids' timeouts when they get in trouble, 15 minutes room clean-up times, etc. Chrono is fun for anything you wanna use a stop-watch for. I set the second time zone for Vietnam time. It really is a million times easier to use this watch for all of its functions than reaching for a smartphone or alarm clock, etc. If you;ve been relying on your phone for a few years as a watch/chronograph/timer/alarm - you'll be so glad you finally got a watch like this. I've never tried a smart-watch, however I feel those are not as necessary,durable or practical as a real watch. Other Timex watches I've used were freakin' trash - couldn't throw em away fast enough. Might as well open the box while holding it over a trash can, so the watch can fall right in when you open the box. That's my experience with the Expedition line-up. Back to this watch: The only thing I wish this watch could do is measure activity thermogenesis (calories expended throught the day) or work as a pedometer, which some smart-watches and other devices can do. I also cannott decide if I like this new, slightly larger, heavier/thicker design of the Ironman Triathlon over the 1990s design. The 90s models styling was "tight to death'. Star-split buttons were seperated. The mode button was yellow. Overall more compact and bi-cultural;by that I mean it looked great as an athletic watch or a politician, business man wathc. This new model is bigger, better ingress/shock resistance, and more of an athletic style over all, and is a little less colorful. I almost went with the G-shocks, but they still just look like crap and are waay to expensive. Sure, they have some better features, can survive WWIII, but I am a traveler. I need a watch that can work in the dark in any environment. The G-shocks are often using some kind of solar battery crap and rely on cathing a signal from an American automic clock in Colorado - good luck with that while your in Thailand on vacation.
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Reviewed in the United States on December 31, 2016

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