internal engine parts

[will]

are internal engine piece worth anything has to orginal GM stuff.

this guy(we all know one of these) is cleaning out his father in laws barn, supposedly he raced years ago, he told me that there are lots of engine parts and some boxes marked "427". there is also supposed tobe an old race car.
he won't let me go with him to see it, he want to bring it to his house first, he does want the other in laws to find out what hes doing(they think hes junking it all)he only knows it's a race car, (he once told me his son had an old nova, turned out tobe a 68 camaro)so he not a car guy.but he'll want to sell stuff, or trade for a boat motor.

I just don't know if anything other than block heads intakes are worth resale.

are there #'s to look for.

hoping to see stuff this weekend.