SpeedFactory Racing MLSS-HP High Performance Head Gasket
For Honda/Acura B-Series VTEC Engines – B16A, B18C, B20VTEC, LS-VTEC
Upgrade your engine’s sealing performance with the SpeedFactory MLSS-HP Head Gasket—engineered for high-compression, high-boost, and high-RPM B-Series VTEC builds. This gasket provides unmatched reliability under extreme heat and pressure, whether you're running a turbo, supercharger, nitrous, or naturally aspirated race setup.
🔧 Key Features:
4-Layer MLS Construction: Multi-layer stainless steel core with high-performance elastomeric coating for superior seal integrity on less-than-perfect surfaces.
0.040" Thickness: Slightly thicker than OEM (≈0.028") to better accommodate resurfaced heads and blocks.
Raised Embossments: Around combustion chambers to handle increased cylinder pressure and prevent head lift.
Wider Bolt Holes: Designed for 1/2" head studs; maintains OEM dowel hole spacing for easy installation.
High Heat Resistance: Withstands the rigors of extreme cylinder pressure and temperature cycles.
📏 Bore Size Options:
Choose based on your actual engine bore:
81.5mm, 82mm, 83mm, 84mm, 84.5mm, 85mm
💡 Each gasket covers a 0.25mm bore range (e.g., 84mm works for 84.0–84.25mm bores).
✅ Fitment:
Honda / Acura B-Series VTEC Engines:
B16A, B18C1, B18C5, B17A
LS-VTEC (B18A/B) & B20VTEC (B20B/Z with VTEC head) – Requires stepped dowel pins
🔩 Recommended For:
Boosted engines (Turbo, Supercharged, Nitrous)
All-motor high-compression race builds
Engines using ½″ head studs and O-ringed blocks (for 1400+ HP sealing)
📦 What’s Included:
1× SpeedFactory MLSS-HP Head Gasket
Sealed packaging with part number and quality control stamp
🛠️ Installation Notes:
For LS-VTEC or B20VTEC builds, use stepped dowel pins to align correctly.
For max sealing, pair with SpeedFactory Extreme Duty L19 Head Stud Kit.
Always confirm exact bore and thickness requirements before ordering.
