* Year and Model: A vintage Hemi from the muscle car era (like a 426 Hemi from the 1960s or 70s) is worth significantly more than a modern Hemi from a Dodge Ram truck. The condition of the engine also plays a huge role here. A fully restored, numbers-matching engine from a classic car can be worth tens or even hundreds of thousands of dollars.
* Condition: A fully rebuilt, meticulously maintained engine commands a much higher price than one that's worn, damaged, or incomplete. Rust, wear, and the presence of any modifications will influence value.
* Modifications: Aftermarket parts can increase or decrease value, depending on their quality and desirability. High-performance parts might add value to some engines, but others might prefer a completely stock engine.
* Completeness: A complete engine with all its accessories (intake manifold, carburetor, etc.) is worth more than a bare block.
* Location: Supply and demand will influence pricing, so what a Hemi is worth in one area might differ from another.
In short: There's no single answer to how much a Hemi engine is worth. To get a realistic valuation, you need to specify the exact year, model, condition, and completeness of the engine. Checking online marketplaces like eBay, Hemmings, or specialized forums for classic car parts can provide some price guidance based on comparable listings. You might also consider consulting with an appraiser specializing in classic car parts or engines.