These Speed Engineering exhaust manifold gaskets are multi-layer steel (MLS) gaskets for BBC engines (6.5L, 6.6L, 7.4L). They have 1-7/8" square exhaust ports and 17-7/8" center-to-center spacing on the outer bolt holes. Speed Engineering designed them for high cylinder pressures, states that they hold their torque and resist corrosion, burn-through, and push-out, and notes that they work with different combinations of cylinder head and exhaust manifold materials.
Includes 2 gaskets.
⚠️ Important Notes:
- BBC engines only
Features:
- Multi-Layer Steel (MLS) Construction
- 1-7/8" Square Exhaust Ports
- 17-7/8" Center-to-Center Outer Bolt Holes
- Holds Torque and Resists Corrosion
- Quantity: 2 Exhaust Manifold Gaskets
- BBC Engines Only: 6.5L, 6.6L, 7.4L
FAQ
What type of gasket is this?
It is a multi-layer steel (MLS) exhaust manifold gasket.
Which engines do these gaskets fit?
They are for BBC engines only (6.5L, 6.6L, 7.4L).
What port size and bolt spacing do they have?
They have 1-7/8" square exhaust ports and 17-7/8" center-to-center spacing on the outer bolt holes.
How many gaskets are included?
The set includes 2 exhaust manifold gaskets.
Do these gaskets work with different head and manifold materials?
Yes. Speed Engineering states that these MLS gaskets withstand different combinations of cylinder head and exhaust manifold materials.
