10mm thick 5053 Aluminium CNC WATERJET cut inlet manifold adapter plate to suit the mk2 and mk2.5 Mazda MX5 engine. This plate/stud arrangement allows the fitment of the early mk1 1800 inlet manifold onto the later cylinder heads. The kit consists of:
1 x MX5 Adapter Plate
9 x M8 Manifold Studs (33mm Exposed Length once mounted in the plate)
9 x M8 Countersink Screws for countersunk mounting holes (these replace your existing head studs)
The later engines have the ports positioned considerably higher in the head, therefore this plate positions the early inlet manifold in the correct position to align with the ports. Some minor port matching may be required on assembly to get optimum flow (as with any inlet manifold).