2L Pinto ported head with Newman PH4.5 cam kit. Head has new guides and unleaded inserts fitted. Ford 42mm inlets with 36mm injection exhausts. New single 160lb springs under modified caps. New stem seals. Cylinders are 37cc volume. Ported for std valve sizes and flowbench verified. With supporting induction etc this is capable of 175/180hp Cam clearances all set on new followers. 12mm plug adapters included to save you having to index plugs.  Exchange std head required.