A full set of oversize valves and guides to suit Toyota 4EFE and 4EFTE engines These are our very own design and manufactured strictly for us to our tolerances and material specifications. They are the very best quality and we use these on our own racing engines. Material EV16 ( 21-8N) Stainless steel Flat face head Included 8 oversize inlet valves 8 oversize exhaust valve s 16 bronze valve guides 16 valve stem oil seals to suit .