SKU: 21515808282

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

Sale price$103.94 Regular price$115.49
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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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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4.3 ★★★★★
Based on 6 reviews
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Verified Purchase
Sharon A. Hall
Massapequa, US
★★★★★ 1
Asurion "Assures" nothing!
Asurion has terrible Customer Support. All machine based. They give you no phone # for human interaction. Their online Support process is very close-ended. It is a checklist designed to frustrate purchasers whose issue lies outside only the very issue. My issue: I bought "Cuisinart TOB-40FR Custom Classic Toaster Oven Broiler, Silver (Renewed)" on May 26, 2024. It stated it had a 90 day warranty. So I bought an Asurion Protection Plan also to cover it for 3 years. The toaster started flaking off metal finish inside the oven over the cooking area. I tried to file a claim with Asurion and they told me the Manufacturers warranty was still in effect and I should contact Cuisinart. This despite the oven was sold with a Amazon Renewed verbiage stating a 90 day warranty. And they have nothing on their "Machine Checklist" to cover this eventuality. And I would assume I am not the only one who takes the "Renewed" route and backs it up with a "Protection Plan". They will frustrate you no end. I suspect, like many insurances, they seek to deny, deny, deny, in hopes the purchaser will give up.
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Reviewed in the United States on January 4, 2026
D
Verified Purchase
Darla
Bozeman, US
★★★★★ 4
GIFT CARD AS REPLACEMENT, NO CHOICE OF CHECK OR REPLACEMENT. GOOD COMPANY
PROS: * A decent company, responsive and fair. * Allows you to buy items from anywhere you want, and buy the warranty at Amazon. * Provides better coverage than other warranties, and covers more, including breakage! CON: They don't send you a check in order to buy wherever you want, send a replacement, or give you a choice. Instead, they send you an Amazon Gift Card. That's OK if you're a big Amazon shopper, but sometimes, you can get a better price elsewhere.
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Reviewed in the United States on December 10, 2025
L
Verified Purchase
Luis Ortiz
Grantham, US
★★★★★ 5
Asurion has been outstanding. Their customer service is quick, reliable, and efficient.
Every time I’ve had a problem, Asurion has been outstanding. Their customer service is quick, reliable, and efficient, and they handle claims with minimal hassle. It’s reassuring to know they actually follow through and resolve issues promptly.
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Reviewed in the United States on April 16, 2026
G
Verified Purchase
Glen Armstrong
Bozeman, US
★★★★★ 5
Good protection, easy process
First time filing a claim. Super easy and fast. Nice to have have protection and a smooth claims process when the unfortunate happens..
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Reviewed in the United States on April 25, 2026
K
Verified Purchase
K. Shockley
Dallas, US
★★★★★ 5
Ease of making a claim and quick return time for claim.
Very easy to work with.
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Reviewed in the United States on May 21, 2026

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