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 Jul 15 - Jul 20

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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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GypsySoul
Louisville, US
★★★★★ 5
Love it
Color: Dark Green, Size: Small
I got the dark green. Love the sweater and it's warm. I do layer the sweater as well. It is as pictured. Size is perfect to me. I like sweaters to be longer and a bit wider in case it is freezing and I need to layer it. This sweater is perfect for layering. It comes closer to my backside, it is a little wide and not snug, and I like that the sleeves come over my wrists
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Reviewed in the United States on February 7, 2026
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Verified Purchase
JB
Dallas, US
★★★★★ 1
Still soft but looks terrible after 1 wash. Save your money
Color: White, Size: Small, Color: White, Size: Small
Update: sweater looked great when I received. After 1 wash it looks terrible. Looks like it’s been washed too many times, material fuzzy and piled. After wearing it once, it snagged and the knit pulled through. I would NOT recommend. I had such high hopes. Save your money. Very nice sweater, especially for the price! I love the details of the buttons on the sleeves. It is SO soft. It’s not super thick as I can see my skin through it when pressing my hand up against fabric. However, it’s not see through when wearing it. It’ll be perfect in cooler weather and perfect in the winter with a coat but won’t cause me to overheat when in a heated environment. I do feel like it runs big. I could have sized down a size. Although I’m not sure if it’ll shrink after a wash or two.
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Reviewed in the United States on September 22, 2025
L
Verified Purchase
Lynn M
Boise, US
★★★★★ 3
Disappointed.
Color: Blue, Size: Large, Color: Blue, Size: Large
This sweater is so comfortable and very soft. It fits well in a flattering, oversized way. But after one wash it is pilled everywhere which makes it look old and shabby. It’s at a price point where I feel compelled to return it.
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Reviewed in the United States on January 10, 2026
T
Verified Purchase
TripletMama Heather
Massapequa, US
★★★★★ 5
Perfect for casual wear and dressy style
Color: Dark Green, Size: Small
This sweater is soooo soft and the color is so rich. The fit of it is perfect, not too tight and not too baggy, just right and I used the size guide to pick my size. Just for reference, I am 5'3" and 130lbs, 38C bust. It's well made and washes great. I chose to hang dry mine as I typically don't put any of my sweaters in the dryer to dry, just to fluff them. I have this one in two colors, the green and the tan/beige and I would say they are both a true representative of the color shown.
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Reviewed in the United States on November 15, 2025
M
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MMF
Whiting, US
★★★★★ 5
Love the long sleeves!!!
Color: White, Size: Small
Love it! I'm 5' 11" tall and I purchased this according to reviews. Several people commented on the length of the sleeves. I have a hard time finding sleeves long enough if it's not " tall" sized. It was perfect for me. If this washes nice I'm going to consider purchasing more in other colors. I ordered the white and just love the long ribbed cuffs with the line of buttons. Very soft.
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Reviewed in the United States on May 1, 2026

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