I ended up with an old sbc engine, it turns out to have a 69 307 short block, bored .125 to make it a 327, heads are double hump 300's, April 15, 1966 along with the intake, cast iron, and 4 bbl Carter carb. I was wondering if the heads are worth anything anymore? Engine ran good before it was taken out of a friends Dad's truck after he wrecked it, been stored over 30 years, engine turned over good and the carb isn't all locked up, I was pretty amazed at that. I thought about throwing rings and bearings in it and have the heads gone through but may just part it out.