Siruda Stopper Metal Head Gasket
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Siruda Stopper Metal Head Gasket - Mazda MX-5 (NA) - B6
The Siruda stopper metal head gasket is a multi-layer steel (MLS) head gasket for the B6 engine in the 1.6-litre Mazda MX-5 (NA). It is made for rebuilt and modified engines where the head seal has to hold more cylinder pressure than a factory gasket.
Choose the bore and thickness to suit your build. It comes in bore sizes of 79 mm or 85.8 mm and thicknesses of 1 mm or 1.2 mm. A thicker gasket lowers compression and adds piston-to-head clearance, so measure deck height and set the thickness with your engine builder. The thickness shown is Siruda's figure at the combustion seal; the body thickness is in the specifications.
Siruda's stopper design adds a stopper layer sandwiched between the steel layers around each bore. It keeps the combustion seal stable under engine vibration, and the compact seal suits engines with little room around the combustion chamber.
Note: Sold individually. Installation by a professional is recommended. Engine internals must be measured and set up by a qualified engine builder.
Features
- Multi-layer steel (MLS) construction
- Stopper layer between the steel layers around each bore
- 79 mm or 85.8 mm bore
- Choice of thickness: 1 mm or 1.2 mm
- Suits stock and built engines
Pairs Well With
Shop more: Siruda
Need help choosing parts? Contact our team at sales@chicaneaustralia.com.au.
Product
- Brand
- Siruda
- Part number(s)
- ICH071100-RA0, ICH071110-RA0, ICH071110-RA1
Details
- Product
- Stopper Metal Head Gasket (multi-layer steel)
- Engine
- B6
- Gasket type
- Stopper
- Bore
- 79 mm; 85.8 mm
- Thickness
- 79 mm / 1.2 mm: 1.2 mm at seal, 1 mm body; 85.8 mm / 1 mm: 1 mm at seal, 0.9 mm body; 85.8 mm / 1.2 mm: 1.2 mm at seal, 1.1 mm body
- Sold as
- Single gasket
Contents
- 1 x Siruda stopper metal head gasket
No instructions available for this product.

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