Engineers had just ten months to design and build the new engine from scratch before ... But all of this power and performance came at a cost, as the Boss 429 was nearly $5,000 in 1970—roughly ...

Ford sold over 7,000 Boss 302s in 1970, but only 305 examples were painted Calypso Coral and fitted with this specific ...

With a usual cost of around $150-200k (£115-154k) for most examples, the 429 Boss will likely sit a fair amount higher, as values already hover at around that amount for unmodified versions.