SKU: 57850527347

Mazda and Ford 4cyl Head Stud Upgrades

Sale price$222.75 Regular price$247.50
Save 10%

Pay in installments of $61.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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.
  • 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: 57850527347

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
V
Verified Purchase
Vincent Grossi
Fort Morgan, US
★★★★★ 5
Good quality. 3 month review
My dog likes them more than the more expensive versions we have. Still in one piece and they get beat on, tugged with me and a dog or by 2 dogs both about 70lbs
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
N
Verified Purchase
Noah Davis
Battle Creek, US
★★★★★ 3
Dog doesn’t like how it slams into his face from the weight
The balls were heavier than I expected and my dog does not like to engage with it even when I drag and throw them around to play with. To heavy duty for cattle dog
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 5, 2025
H
Verified Purchase
Héctor
Natrona Heights, US
★★★★★ 5
Great Training tool!
These things are great! I have a power chewing 8 month old Doberman who DESTROYS toys and he LOVES these balls. I use them on walks as a training reward and it has been a game changer. He loves these more than treats. Its not something I would leave for him to chew on his own in the house, but that's not what they're meant for. You use the rope to dangle and animate the ball so you become the most interesting thing on the walk. Then a clear drop command and you're back at whatever task you were working on. It's great to train recall, leave it, and reward for any good behavior. Highly recommend as a training tool, just remember to tighten the rope before you use it. Do not leave these things lying around your house and think you'll have a great result if you have a power chewer. Use as intended and you will be a happy camper!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2021
D
Verified Purchase
Dan
Phoenix, US
★★★★★ 1
Didn’t last 2 minutes
Not actually made of corded rope. Instead made with the most fragile materials this misleading, fraudulent company could find. Any potential buyers beware of this long string of tissue paper. I have been duped!!! Duped!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2023
A
Verified Purchase
alejandro
Draper, US
★★★★★ 5
My dog love this toy! its just perfect!
My dog love this toy! its just perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026

recommand products