RWA1680 This head is a must for any serious 2.0L Pinto racer that can use a mechanical camshaft. We install our 1.75" intake and 1.50" exhaust valves that are .050" longer for our #3 & #3A camshafts. We use our 1452 valve springs, 1456B retainers, valve stem seals. New cam bearings are installed and the head is cleanup cut to ensure proper head gasket sealing. Tha head is setup to your needs and camshaft. We do offer titanium retainers, valves, & keepers. Supply is very limited and in most cases the head is not in stock. Please call 800-334-0151 before placing your cylinder head order.