SKU: 84931722575

SpeedFactory Racing 4140 Head Stud Kit - D-series

Sale price$159.80 Regular price$177.55
Save 10%

Pay in installments of $44.39 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 11 - Oct 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

SpeedFactory Racing 4140 Head Stud Kit - D-seriesSpeedFactory is proud to introduce their new D Series Head Stud Kit that fits all variants! No more having to mix and match fasteners for various block and head combos the unique stud design fits all of them. Any combination of D15 or D16 block or head, non VTEC or VTEC, D16Z6 or D16Y8 heads or blocks, etc. The SpeedFactory Racing 4140 Head Stud Kit is great for most forced induction applications up to 600+HP and includes oversized forged nuts &

SpeedFactory is proud to introduce their new D-Series Head Stud Kit that fits all variants!

No more having to mix and match fasteners for various block and head combos - the unique stud design fits all of them. Any combination of D15 or D16 block or head, non-VTEC or VTEC, D16Z6 or D16Y8 heads or blocks, etc. 

The SpeedFactory Racing 4140 Head Stud Kit is great for most forced induction applications up to 600+HP and includes oversized forged nuts & washers for superior load distribution. A hex broach is incorporated on the top of the stud for ease of installation and a dog point end seats the stud in the block and preloads the fastener for consistent & accurate torquing.

  • 200,000 psi tensile rating, 10mm diameter
  • 5/32" Hex broach on the top of the stud for ease of installation
  • Dog point design for superior preload
  • Oversized forged 13mm 12-point nuts and hardened parallel ground washers for superior load distribution compared to the smaller 12mm nuts and washers most use
  • Direct drop-in replacement for OEM head bolts.
  • Corrosion-resistant black oxide coating
  • Each kit includes a complete set of x10pcs 4140 head studs, nuts, washers and ARP Ultra-Torque Assembly Lubricant.

Fitment:

  • All D Series
  • 1.5L SOHC (D15B1/D15B2/D15B6/D15B7)
  • 1.6L SOHC (D16A6/D16Z6/D16Y5/D16Y7/D16Y8)
  • 1.7L SOHC (D17A1/D17A2)
  • "Mini-Me" builds (D16Z6 or Y8 VTEC head on D15/D16 Non-VTEC block)
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: 84931722575

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 29 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
TasteTheRainbow87
West Palm Beach, US
★★★★★ 5
Dog loves it
Size: 10.5 inch Rubber Flex Tread
I would buy this again and again. It’s extremely durable and has held up great with my 9 month old Saint Bernard puppy. We even call it his “pacifier” because every night he grabs it and chews on it until he falls asleep. Definitely a favorite in our house!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
R
Verified Purchase
Rob
Chelsea, US
★★★★★ 4
Tough toy, but the yellow tire broke at the seam
Size: 10.5 inch Rubber Flex Tread
It was fun while it lasted and it got a lot of use, but it finally gave out after 6+/- months? Great tug toy. My dog is a 70# mutt with a strong bite and he's chewed through pretty much every other toy he's ever had. This one lasted longer than any of the others by quite a bit. He did zero chew damage to the tires, but the yellow tire in the middle broke at the seam. No tear, the seam just came undone at 90 degree angles. I'm going to look for something else this time but this wasn't bad considering how long it lasted and it wasn't very expensive. If I don't find anything tougher, I may purchase another one of these down the road.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2024
J
Verified Purchase
JB
Phoenix, US
★★★★★ 1
Not for tough chewers at all!!!
Size: 10.5 inch Rubber Flex Tread, Size: 10.5 inch Rubber Flex Tread
5 minutes in and it's destroyed. Very disappointing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
N
Verified Purchase
Nicky S
Dallas, US
★★★★★ 5
Great chew toy
Size: 10.5 inch Rubber Flex Tread
This is my second time buying the Tonka rings. My dog loves this chew toy. It does take him a bit to destroy them. I give this toy to him as a reward otherwise it be destroyed in 3 days. I have a pitty. So other dogs it should last longer. They are shin whackers and hurt when they connect. So I make sure to watch the dog and toy around small kids and elderly to be safe. They are heavy and made well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025
A
Verified Purchase
Ann
Natrona Heights, US
★★★★★ 5
Finally a toy we can leave out!
Size: 10.5 inch Rubber Flex Tread, Size: 10.5 inch Rubber Flex Tread
There are very few toys that we can leave out for our 11 month old golden. Which is a shame because as a small puppy, we taught him to bring us a toy to initiate play instead of nipping. Ropes or stuffies never lasted more than a few minutes so they always had to be taken away. One time he brought us a benenbone to play tug. So I tried this as a last resort. Finally something we can keep out for him! It’s not completely indestructible. He has figured out how to pull bits of tread off. But he chewed hard on it for a solid 20 minutes and it’s still intact with the exception of a few small tread pieces. Can’t say that for 99% of the other dog toys on the market! UPDATE: OK, so it's definitely not indestructible. After a few days of dedicated gnawing, he has almost chewed through the yellow ring so we can't leave him too unsupervised with it. I'm still going to leave it as 5 stars since it's the best tug toy that I have found so far and we have tried a lot! I may buy another one and just make sure I don't let him freely chew on it for any length of time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2023

recommand products