SKU: 57850527347

Mazda and Ford 4cyl Head Stud Upgrades

Sale price$222.75 Regular price$247.50
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Mazda and Ford 4cyl Head Stud UpgradesUnlock the full potential of your Engine build with our upgraded head stud options. If you're building an engine for high horsepower, these head studs are essential for higher power levels. When you're talking head studs, you're ultimately trying to increase clamp load onto your gasket. To get more clamp load, you need stronger material, or bigger studs. Stage 1 engine builds should go with the 10mm CA625+ head studs. These studs are proven reliable

Unlock the full potential of your Engine build with our upgraded head stud options. If you're building an engine for high horsepower, these head studs are essential for higher power levels.

When you're talking head studs, you're ultimately trying to increase clamp load onto your gasket. To get more clamp load, you need stronger material, or bigger studs.

Stage 1 engine builds should go with the 10mm CA625+ head studs. These studs are proven reliable to 800whp with a stock or Cometic MLX head gasket. This option is as big as anyone with a non-sleeved block needs. This option even works well for Stage 2 engines that are not using sleeved blocks.

If you're going sleeved engine and are going to put it to work, your best bet is to step up in stud size. Our 8740 Chrome-Moly 12mm head studs are perfect in-between step. These studs are a very affordable option that is good for over 900WHP. They're the same thread size/pitch as the 12mm CA625+ head studs, so you can always step up later when you refresh your engine. BLOCK MACHINING AND HEAD CLEARANCING ARE REQUIRED, ALONG WITH A SUITABLE 12MM HEAD GASKET.

If the sky is the limit for your build, it's time for our 12mm CA625+ head stud option. There is no bigger head stud available for the platform. These studs are good for over 1200WHP. Do it once, do it right. BLOCK MACHINING AND HEAD CLEARANCING ARE REQUIRED, ALONG WITH A SUITABLE 12MM HEAD GASKET.

All stud sets come with washers, nuts, and instructions.

Engine fitment for 4 cylinder Mazdaspeed DISI and Mazda MZR engines, and Ford Duratec and Ecoboost engines. 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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: 57850527347

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4.7 ★★★★★
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A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Very nice pillowcases
Color: 06 - Beige, Size: Standard (20" X 26")
These pillowcases are really nice. They're soft and wash well. I really like the pocket on the end. It makes your pillows look nice and neat. The price is good too.
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Reviewed in the United States on May 31, 2026
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Verified Purchase
ShelbbLC
Alexandria, US
★★★★★ 3
Love the sheets but GOSH THEY STINK
Color: 19 - Forest Green, Size: Queen (20" X 30")
I have the dark green sheets and bought these for extra cases to match. I would give them 5 stars if it weren’t for the fact that they smell absolutely horrible. I am so surprised after reading reviews that more people don’t mention it?! Maybe it’s more prominent in darker colors but I have washed these now 3 different times even with scent beads and still hate the smell. I wish I could accurately describe what it smells like— it’s just not good and for some reason, body heat only exacerbates it and makes the smell even worse and I wake up feeling like a smell like the sheets… which isn’t a good thing. Besides that, I do really enjoy them. They feel great on your skin and I love the color. I wish the smell didn’t kill them so badly for me ☹️
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Reviewed in the United States on June 9, 2026
A
Verified Purchase
Amy
Dallas, US
★★★★★ 5
Comfy soft pillow covers
Color: 02 - White, Size: Queen (20" X 30"), Color: 02 - White, Size: Queen (20" X 30")
Absolutely love these pillow cases! I bought 2 sets. After I received them & washed & dried them they did remain wrinkly. I just went ahead and put them on my pillows & the wrinkles went away. I continue to love the feel, coolness & comfort. Will definitely buy more.
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Reviewed in the United States on April 5, 2026
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Verified Purchase
Lisa Brown
Houston, US
★★★★★ 5
Great soft pillow cases
Color: 03 - Navy, Size: Standard (20" X 26")
Pillow cases are beautiful and soft, great quality. I had to return them because standard were too small. I am going to order queen instead.
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Reviewed in the United States on June 9, 2026
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Verified Purchase
Denise H.
Port Orchard, US
★★★★★ 5
So soft and amazing quality
Color: 12 - Light Beige, Size: Twin
I can't tell you if they're cooling or not yet. The weather took a turn for the cold so I haven't put them on the bed yet. But the quality..omg it's exceptional! These are insanely soft! Not slippery like satin but not scratchy like percale. They're like the best of both worlds..light as satin but nicely weighty like percale. I don't know what kind of sorcery this is but these are literally better than those 6-zillion count Egyptian cotton sheets that cost more than the GDP of a small nation. These are exceptional!! Soft as butter but still feel like they'll last a while and not let you fall out of bed like silk lol. When you fold them, they snap nicely. They seem to have a lived in look..like they'll never be utterly wrinkle-free but who cares..they're smooth, soft and supposed to be cooling. I never thought I'd find anything more comfortable than cotton sheets but these are even better. The colors are ok. Pretty basic but they are true to life..some others look different online than when you get them..not these colors online are accurate. This was a great deal and I'd recommend a thousand times over!
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Reviewed in the United States on May 23, 2026

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