* Year: The value of GTOs changes dramatically by year, with some years (like 1969) being significantly more valuable than others.
* Condition: A pristine, numbers-matching, concours-quality GTO will sell for a vastly higher price than a rusty, neglected project car. The condition of the paint, interior, engine, and overall body are key factors.
* Options: Rare or desirable options like specific transmissions, interiors, or performance packages will increase the value.
* Mileage: Low-mileage cars are generally worth more.
* Location: Prices can vary geographically depending on demand.
Therefore, there's no single answer to "how much is a GTO with a Pontiac 400 engine." You could find one for sale anywhere from a few thousand dollars (a heavily damaged project car) to well over $100,000 (a highly desirable, restored example).
To get a better idea of pricing, I recommend checking these resources:
* Online classic car auction sites: Bring a Trailer, eBay Motors, Mecum Auctions, etc. These sites often have GTOs for sale, and you can see what similar cars have sold for.
* Classic car price guides: These guides (often subscription-based) provide estimated values based on condition and options. Hagerty and ClassicCars.com are examples.
* Local classic car dealers and shows: Talking to experts in your area can provide valuable insight into current market values.
Remember to always do your research before buying any classic car. Have a mechanic inspect any potential purchase thoroughly before committing to a purchase.