I have a matching pair of rebuilt Small block Chevy heads I would like to sell. The casting numbers are 3884520, original for '62-'67 283's and 327's. These originally had 1.72 intake and 1.5 exhaust valves, but I had them opened up to take 1.84 intake (from High Output early 80's Chev. 305 heads) and 1.6 exhaust valves. Hard seats have been installed. All new guides (steel intakes and Brass exhaust). New springs.... using a style found on Z-28 camaro engines. New seals. Both were surfaced. Also the exhaust ports were polished some. These have no accessory holes on them, so would be great for those who want "upgraded" heads but still want the original look. I am located in Prineville, Oregon. Email me @ [email protected] for questions or interest. I can email pictures on request too. Asking $500 or best reasonable offer. Thanks for check this out.