HowMuch Did a 1971 Boss 351 Mustang Originally Sell For?. A new 1971 Boss 351 Mustang stickered at $4,124, $1,000 more than a base Mustang SportsRoof. That may not sound like a lot today, but in ...

When the Boss 351 finally became a reality in 1971, ... (E4) basecoat/clearcoat applied by Seeger’s Autobody Inc. (Plumsteadville, PA), Graphic Express Custom Boss 351 striping.

A Grabber Yellow 1971 Boss 351 is about to go up for auction, on Friday, June 21, at Mecum’s Portland 2019 auction.

The Boss 351 engine (R-code), confusingly dubbed HO in some Ford brochures, was based on the already formidable 351C four-barrel. However, Blue Oval engineers gave it a long list of upgrades, ...

However, a head-to-head test between a 429 Mach 1 and a 351 Boss with the same (3.91:1) differential gearing was never conducted, so we can't say for sure that the 351 was the quickest Mustang ...

While it may lack the authentic Boss 351 credentials, boasting only decorative valve cover stickers, its allure remains intact. Under the hood lies the R-code H.O. 351 ci ... 1 graphics and Magnum ...

The 1971 Boss 351 was a replacement for the already rowdy and famous Boss 302. That car, so-named because of its 302-cubic-inch engine, gave way to the 351 with its larger Cleveland V-8.

An original plan to stuff Ford’s 6.8-liter Triton V10 into it, but it didn’t fit, so they designed a new one by adding two cylinders to the modular 4.6-liter V8 to create a 5.8-liter, or 351 ...

Check out this custom 1969 Ford Mustang Boss 302 vintage musclecar, ... The "Boss 302" graphics are a bold-faced lie. ... bored .030-inch over and running a factory Boss 351 crank.

The Boss 351 was only available for the year 1971 and was slotted under the Boss 429. As the name suggests, it features a 351 cubic inch V8 engine, mated to a 4-speed manual transmission sending ...

The 351 heads were based on the Cobra R heads, and O’Neill and crew attached the engine to a T56 Tremec six-speed manual, a Ford 9-inch rear end and a rear axle with a 3.83 final drive.

Labeled the Boss 351, the engine block is designed for use in both race cars and high-performance street rods and can handle displacements from 351 cubic inches (5.7L) right up to 460 cubes (7.5L).