The Boss 429 was Ford's answer to Chrysler's 426 HEMI that dominated the NASCAR series following Ford's attempt to get its 427 SOHC engine approved for use. Much like the Boss 429 was developed ...

In the truest sense of the word, no automobile engine actually has a fully hemispherical combustion chamber. However, according to the looser hemi definition, the Ford Boss 429 engine is ...

Three distinct variants of the Hemi-fighting engine were developed, and each got its own internal code. Marked S, T, and A – ...

Introduced in 1969 as Trans Am and NASCAR homologation models, the Ford Mustang Boss model series initially proposed two engines ... 426 Hemi on the oval speedways of NASCAR, so the 429-cubic ...