35.6 mm x 29 mm. Lead free. 1.4" fully modified inlet ports with raised inlet tract for maximum air flow.fully throated exhuasts. This cylinder head is our favourite for mild competition or fast road. Available 9 . Please specify when ordering.Mpi Engines from 1275 to 1380cc. ( For optimum power we recommend our fully modified Inlet manifold together with the larger 48/52mm Throttle Body )
