Thanks. They will never have the snowflakes. I saw another set of NOS heads and they seem to have the same porting. I think it isn't porting but rather how the factory smoothed out the rough entry. The grind marks go less than an inch into the port. No actual opening of the ports was done. I figured that while they aren't correct dates and won't have the snowflakes they are still all fresh and ready to bolt on and have no repairs to them which nearly all the original heads have they might still be better than a lot of what's out there. Since even cheap Chinese aluminum heads are over $1,500 and have very poor quality of parts and machine work these heads might be worth something. I don't think these heads were ever on a running engine. They were on a show car that was never finished and the entire engine was brand new except the block and crank.
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