Cometic MLS Head Gasket 80mm Bore .027in - NA6 Miata (90-93)
- $108.57
$120.63- $108.57
- Unit price
- per
The Cometic C4122-027 is a multi-layer steel (MLS) cylinder head gasket for the Mazda 1.6L B6 engine (Cometic lists B6D/B6T/B6ZE) with an 80 mm bore opening and a compressed thickness of .027 in. Cometic lists it for the 1990-1993 Mazda Miata (NA, 1.6L B6ZE). Gasket thickness is one of the variables used to set compression ratio and piston-to-head clearance in a built engine.
- 80 mm bore opening, the only bore size Cometic lists for the B6 (the B6's stock bore is 78 mm)
- Compressed thickness .027 in; Cometic does not publish a compression ratio for this gasket, so calculate it for your build
- 3-layer MLS (multi-layer stainless steel) construction
- Outer stainless steel layers carry a .001 in Viton rubber coating; installed dry, without additional sealant (Cometic says extra sealer can hinder sealing)
- Requires smooth, flat and true head and block deck surfaces; Cometic recommends a surface finish of 50 Ra or finer
- Made to order by Cometic; use the head bolt (fastener) manufacturer's torque values
Fitment: 1990-1993 Mazda Miata (NA6, 1.6L B6ZE). Not for the 1994-2005 1.8L BP engine: Cometic sells separate BP gaskets for those cars.
Part number: Cometic C4122-027
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-1993 | Mazda | Miata | All |
Our 365-Day Promise
Garage 56 believes so strongly in the products we sell that every item comes with a full 365-day replacement gurantee - regardless of the manufacturer warranty timeline.
Shipping Policy
In-stock orders placed before 1pm EST ship same day. All qualifying orders of $56 or more ship free. Flat-rate and expedited shipping options are available at checkout.
An item is marked as "Special Order" what does that mean?
Items marked as "Special Order" are available for shipment direct from the manufacturer - also known as "drop shipping". In most instances we are able to ship directly to you however, in limited circumstances we will need to order the item into our warehouse before we are able to dispatch to you. In all cases, your form of payment will not be finalized until we confirm availability of all Special Order items - place your order with confidence!
- Choosing a selection results in a full page refresh.
