I have a set of heads that came off a 66'327 corvette engin and the numbers are 3782461 and my question is how good are they and are they worth getting reworked?(double hump heads)

 

They are excellent heads as stock heads go. However, they lack the bolt holes in the end for accessories, which are extremely difficult to fake.

If they are in stock condition with the oress-in studs, 1.25" valve springs, etc. then by the time you have prepared them properly, you will have nearly as much money in them as you would have in a set of S/R Torquers... IMHO these days it's not a good deal to work over a set of stockers compared to getting new aftermarket ones.

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"So many Mustangs, so little time..."
ICON Motorsports

 

Thanks for the tip, I guess i can practice rebuilding heads since this is my first time.