SKU: 21515808282

SpeedFactory Racing High Performance MLSS-HP Head Gaskets for Honda/Acura K-Series Engines

$103.94 $115.49
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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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Description

SpeedFactory Racing High Performance MLSS-HP Head Gaskets for Honda/Acura K-Series EnginesSpeedFactory Racing High Performance MLSS HP Head Gaskets for Honda Acura K Series Engines PAIR WITH OUR SPEEDFACTORY RACING 4140 HEAD STUD KIT FOR THE ULTIMATE SEALING COMBO CLICK HERE! These MLS gaskets have been purpose built to provide an excellent seal on high compression nitrous turbocharged engines, and when used in combination with our Extreme Duty L19 Head Stud Kit have been real world tested to 1000hp with excellent results. Our gasket

 

SpeedFactory Racing High Performance MLSS-HP Head Gaskets for Honda/Acura K-Series Engines

PAIR WITH OUR SPEEDFACTORY RACING 4140 HEAD STUD KIT FOR THE ULTIMATE SEALING COMBO - CLICK HERE!

These MLS gaskets have been purpose-built to provide an excellent seal on high compression / nitrous / turbocharged engines, and when used in combination with our Extreme Duty L19 Head Stud Kit have been real world tested to 1000hp with excellent results. 

Our gasket utilizes a 4-layer design with specialized embossments that increase active combustion sealing height, ideal for high output engines that experience high levels of head lift/movement. The 0.040” thickness makes up for cylinder head and block surfacing vs the OEM 0.028” thickness and we've also incorporated a unique internal silicone bead on the oiling passages for improved sealing.

Another unique feature is enlarged head stud holes for compatibility with 1/2” head studs (the 2 locating dowel holes remain OEM sized and are the only holes that need to be modified if running 1/2" head studs, greatly reducing the time & effort required during engine assembly). We have been reliably running these gaskets on wet deck Bullet Billet blocks which utilize 1/2" head studs at 1400+whp.

FITMENT:

• Honda/Acura K20/K24 engines with PPA/PRB/PNC or RBC/RBB/RAA Head
• Available Sizes:
• 86.50mm (Used for 86.00-86.50mm bore)
• 87.50mm (Used for 86.75-87.50mm bore)
• 88.50mm (Used for 87.75-88.50mm bore)
• 0.040” / 1.016mm thickness

FEATURES:

• MLSS-HP (Multiple Layer Stainless Steel + Silicone Bead) Head Gasket optimized for high performance use
• 4-layer MLS design with specialized embossment increases active combustion sealing height, ideal for forced induction engines that experience high levels of head lift/movement.
• Unique internal silicone elastomeric sealing bead around oiling passages for improved fluid sealing.
• High performance elastomeric coating to ensure the best possible seal by compensating for surface irregularities.
• 1/2" head stud compatible.
• OE quality, OE certified manufacturer (ISO 9001, ISO/TS16949, ISO 14001 certified).
  • Note: This is a non-stopper ring type design.
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: 21515808282

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4.8 ★★★★★
Based on 21 reviews
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Product Reviews
O
Verified Purchase
Oscar
Lexington, US
★★★★★ 5
love them!
Great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
J
Verified Purchase
J
San Leandro, US
★★★★★ 4
Better than thin plastic boards
I used to use one of those thin/bendable plastic cutting boards, thinking it's easier to transfer food into pots/pans from the board, but they tend to get bent in time and they're simply too thin and I hated the feeling of my knife pretty much hitting the kitchen counter. So, I decided to buy this set. I wanted to try a wooden board, but didn't want to spend too much in case I didn't like it, and this set had the perfect price tag and I liked the fact it came with 4 different sizes, so that I can see what size would actually be more useful. I've been using it for 2 months now they're doing great (except one of them started splitting a bit and started showing some strange black dots on the side... possibly mold??? though I can't think of any reason why mold would grow on just one of them. Maybe it's related to the fact that it's the only one that's cracking. And this is the only reason why I gave 4 stars instead of 5.) Anyway, apart from that one, the rest are doing well and having 3 boards is plenty. I like the juice groove to avoid spilling liquid on the board, as it happened so many time using the bendable plastic boards. I'm handwashing them with dish soap. They seem to dry pretty fast, and so far no stains etc. on the surface. They're not super duper thick so even the largest one is not too difficult to handle. I sometimes use them to serve some food like appetizers, snacks, pizzas and sandwiches, etc. too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2023
R
Verified Purchase
Royce Caswell
Carnegie, US
★★★★★ 5
Great selection!!
Got these for my wife. She loves them. They are thick and easy to clean. They are very durable. They look beautiful. They function for everything we do in the kitchen.
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Reviewed in the United States on January 16, 2026
J
Verified Purchase
Jesse Lange
Houston, US
★★★★★ 1
Updated review: spitting and splintering
UPDATE: Originally, one of the boards arrived with a split in it, but I was still happy with them. After a few weeks of light use, hand washing and drying of the boards, I figured it was time to update this review and knock these down to 1 star. The boards do not hold up very well. Cut marks are deep, and they are starting to splinter. Another of the boards has also developed a split. Save your money and go with cutting boards from someone else. ORIGINAL REVIEW: I bought these cutting boards to cut down on microplastic exposure. This would be a 5 star review except that one of the boards arrived cracked (noticed while hand washing all of them before use). Despite the one cracked board, I did not return them, as I immediately started using the boards, was too busy to deal with it at the time, and the overall value was still there. These boards are great, the value is excellent since you get several of different sizes. I like that all sizes have the moat for juices, because sometimes you are cutting one or two chicken breasts or one steak and don’t want to have to grab a big board. I honestly am writing this review because I wouldn’t be surprised if the company sends me a replacement. If they do, I will update the review to reflect their customer service.
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Reviewed in the United States on February 17, 2025
B
Verified Purchase
Brittany Collins
Massapequa, US
★★★★★ 5
Will buy again
Love my cutting boards. Great quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026

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