I have a really nice set of 3946074 GM/Winters aluminum heads for 1969 Camaro zl1 or vette L-88 model vehicles. The heads look to both be a date matched set with date 1.9.70. Both heads have all the rocker bosses intact and never welded , the heads were very slightly cleaned up but you can still see the casting lines, all water jackets look great, 

 I want to include everything I see that is not stock or wrong with these heads for people so there is no confusion or surprises, on both heads all the intake bolt holes have been helicoiled ,on one head two exhaust holes have been helicoiled, on same head two spark plug holes have been helicoiled, I do see a few little gouges on one of the combustion chambers were some debris got at one point, that's all the stuff I can see, I got these heads from a friend who had them rebuilt last year and got lucky and located a nos set and bought them and sold me these , he spent close to $800 at the best machine shop in town to have the rebuilt , so they should be ready to bolt on but you may want to pass them through your local machine shop to make sure, I'm not a vintage cylinder head expert just a young guy who was building a Zl-1 motor for my 69 Camaro and just went a different direction as I located and purchased a complete L-88 69 corvette motor today. I am looking for $4000.00 or best offer, I will not ship these heads outside of the USA and please call me with any questions directly before purchase with any questions or to save some money, (804)382-9319 my name is Pete feel free to call me anytime , thanks for your interest and have a blessed day