SKU: 84931722575

SpeedFactory Racing 4140 Head Stud Kit - D-series

Sale price$159.80 Regular price$177.55
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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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

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4.6 ★★★★★
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DALIA ALVAREZ
Pawtucket, US
★★★★★ 5
Great shoes
I like these shoes they are comfortable, and look great. Good quality, it fits to its size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2025
L
Verified Purchase
Leonardo Perez
Waukegan, US
★★★★★ 1
Mal presentado
Size: 9, Color: Black Full Grain
Un zapato llego con cosido defectuoso
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Reviewed in the United States on October 29, 2025
J
Verified Purchase
Joe
Natrona Heights, US
★★★★★ 5
Comfortable
Size: 11.5, Color: Black Full Grain
Fit great very comfortable
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Reviewed in the United States on October 16, 2025
D
Verified Purchase
DAVID L.
Port Orchard, US
★★★★★ 5
Nice shoes!
Size: 11, Color: Black Full Grain
I bought them in black and I like them so much I will be buying the brown soon. They fit true to size and are comfortable and stylish. I like the clean simplicity. They're basically a dressy sneaker which is perfect for my job's 'dress code'. Yet they're stylish enough to be worn weekends or a night out. They seemed just a touch stiff out of the box but IMO that's completely normal and fine - after just a couple days of wearing them they are breaking in nicely. No complaints on that. They seem to be of very high quality and I'm very happy with them.
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Reviewed in the United States on February 8, 2026
B
Verified Purchase
Bamaphan
Dallas, US
★★★★★ 5
Good shoes!!!!!
Size: 10, Color: Tan Full Grain
They are comfortable, they fit, great style. I bought blue, brown and black shoes.
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Reviewed in the United States on August 18, 2025

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