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, do not expect to plug it in and work perfectly. Unless otherwise noted this is a used part. A used part may have dust, dirt, old paint, scratches or cracks. These are not new parts unless noted so please set your expectations accordingly. See pictures for condition and wear as we rely heavily on photos. Applications are based upon various sources, although I try to make sure research is correct it can be flawed so please verify your applications. Please use a PC to take advantage of the zoom feature as it will provide much greater detail than a portable device. Thank you for allowing me to share my passion with you. I have thousands of original car and truck parts available in my store. All of our packages are professionally packed with a custom made box from recycled cardboard. This will take a little longer but you’ll be pleased with the care that was taken with your part. See our other items. Port 350 HP 4 Barrel GTO Automatic.