This product data sheet is originally written in English. HARD TO FIND ORIGINAL CLASSIC CAR & TRUCK PARTS. We acquired this matching pair of Ram Air III heads amongst a much larger lot of parts so we don't have a lot of history on them. We had them tumbled so you can better see the condition of the heads and if you look closely, you can see that the valve guides have been knurled so they've had some work done to them at some point. They show matching dates of B230 & B230 which would decode to February 23rd 1970. Expect it to need work prior to usage or installation,…