There were two versions of the Boss 429 production engine, both rated at 375 horsepower. An updated engine was introduced during the '69 model-year run with changes designed to boost its anemic feel.

Brown and Lohone used a flat-tappet camshaft like later Boss 429 engines to actuate the valves. They specified a Comp Cams grind that delivers a whopping 0.650-inch lift on both sides with 251 ...

The Boss 429 Mustang only ran in 1969 and 1970, selling some 1,359 (including two Boss 429 Cougars) units before killing the model. In NASCAR, the engine was used in the Torino Talladega and ...

The Boss 429 needs no presentation, but did you know that this older, more obscure Ford model will leave the famed Mustang in ...

Let's talk about the heart of the beast—the Boss 429 engine. On paper, Ford rated it at 375 horsepower, but nearly everyone agrees that number was sandbagged to keep insurance companies off ...

The standard setup for the Boss 302 will be a modified 5.0-liter Coyote V8, and a stroked 363 cubic-inch V8 will be offered. The Mach 1’s engine bay is a free for all.

Ford’s exercise in transforming the Mustang BOSS 429 from a front-engine to a rear-mid-engine layout bore interesting results. The weight distribution was effectively reversed, from 60/40 to 40/60.

$675,000 for a 41-year-owned Mustang. Not just any Ford Mustang, but a mint-condition Boss 429. Under 17k miles - 27,000 km - all original, this 1-in-500 Boss deserves the best of the best from ...

The Boss 429, on the other hand, rolled off the assembly line so that Ford could use the then-new 429-cubic-inch (7.0-liter) V8 in the NASCAR-spec Talladega.

They had a little trouble finding those fellows mostly because of the sticker price. New, this Boss 429 would’ve fetched $5,000, more than $2,000 over the base Mustang, the 428.

The 1969 Mustang Boss Boss 429's engine had many nicknames, a few of them being: The Blue Racer, The Semi-Hemi and The Blue Crescent. But only one seemed to stick, and, soon enough, the engine was ...

We prove that you can get great horsepower with the Ford Boss 429 with this complete engine buildup. Only at www.hotrod.com, the official website for Hot Rod Magazine.