Ford Boss engine
Encyclopedia
Boss is the internal name for a family of large displacement V8 engine
V8 engine
A V8 engine is a V engine with eight cylinders mounted on the crankcase in two banks of four cylinders, in most cases set at a right angle to each other but sometimes at a narrower angle, with all eight pistons driving a common crankshaft....

s from Ford Motor Company
Ford Motor Company
Ford Motor Company is an American multinational automaker based in Dearborn, Michigan, a suburb of Detroit. The automaker was founded by Henry Ford and incorporated on June 16, 1903. In addition to the Ford and Lincoln brands, Ford also owns a small stake in Mazda in Japan and Aston Martin in the UK...

 intended to compete with Chrysler
Chrysler
Chrysler Group LLC is a multinational automaker headquartered in Auburn Hills, Michigan, USA. Chrysler was first organized as the Chrysler Corporation in 1925....

's 6.1 L and larger Hemi engines and General Motors
General Motors
General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...

' 6.2 L Vortec engines. Originally, Ford developed the engine architecture under the name Hurricane; however, development of the engine was delayed due to its temporary cancellation in 2005. It was revived in early 2006 by Mark Fields
Mark Fields (businessman)
Mark Fields is Executive Vice President, Ford Motor Company; President, The Americas and an executive of the Ford Motor Company. As head of the Americas division, Fields was tapped to develop Ford's "The Way Forward" plan, an effort to repair the ailing automaker. He reports to Alan Mulally, the...

 and was given the new name of Boss in light of the devastation caused by Hurricane Katrina
Hurricane Katrina
Hurricane Katrina of the 2005 Atlantic hurricane season was a powerful Atlantic hurricane. It is the costliest natural disaster, as well as one of the five deadliest hurricanes, in the history of the United States. Among recorded Atlantic hurricanes, it was the sixth strongest overall...

 in 2005. In spite of this change Ford has yet to officially market the engines with the Boss name in any production vehicle where they are to be used, instead referring to the engines by their displacement - except for in Australia where it has been promoted as the Boss V8.

The first Boss engine, a 6.2 L V8, is produced at Ford's Romeo Engine Plant in Romeo, Michigan
Romeo, Michigan
Romeo is a village in Macomb County in the U.S. state of Michigan. The population was 3,721 at the 2000 census. The village is situated at the southeast corner of Bruce Township, with a portion extending south into Washington Township. Armada Township is adjacent to the east and Ray Township to the...

.

6.2 L

The 379 cu in (6.2 l) V8 is the main variant of the Boss engine. The V8 shares design similarities with the Modular engine family
Ford Modular engine
The Ford Modular engine is Ford Motor Company's overhead camshaft V8 and V10 engine family, which has been produced in 4.6L, 5.0L , 5.4L, and 6.8L variations. Contrary to popular belief, the Modular engine did not get its name from its design or sharing of certain parts among the engine family...

 such as a deep-skirt block with cross-bolted main caps, crankshaft driven gerotor oil pump, overhead camshaft
Overhead camshaft
Overhead cam valvetrain configurations place the engine camshaft within the cylinder heads, above the combustion chambers, and drive the valves or lifters in a more direct manner compared to overhead valves and pushrods...

 valve train arrangement, and bellhousing bolt pattern. In particular, the 6.2 L V8 features a 2-valve per cylinder SOHC valve train with roller-rocker
Roller rocker
A roller rocker is a rocker assembly that uses bearings instead of metal sliding on metal.A cam/rocker assembly uses a normal cam, but the roller-tip-rocker has a wheel on the end of it like that of a measuring wheel, which rolls by the use of needle roller bearings...

 shafts and two spark plugs per cylinder as well as dual-equal variable cam timing
Variable Cam Timing
Variable Camshaft Timing is an automobile variable valve timing technology developed by Ford. It uses electronically controlled hydraulic valves that direct high pressure engine oil into the camshaft phaser cavity. These oil control solenoids are bolted into the cylinder heads towards the front of...

. The single most significant departure that the Boss engines make from earlier Modular engines is that they have much wider 4.53 in (115.1 mm) bore spacing (compared to the Modular's 3.937 in (100 mm)), allowing for the use of larger bore diameters and valves. The 6.2 L V8 has a bore diameter of 4.015 in (102 mm) with a 3.74 in (95 mm) stroke. The 6.2 L V8 has lightweight aluminum cylinder heads and pistons but makes use of a cast iron cylinder block for extra durability since most applications for the engine will be trucks.

The 6.2 L V8 went into production in early 2010 and debuted in the 2010 Ford F-150 SVT Raptor as a late-availability option. A limited edition version of the Raptor from Ford Racing called the Raptor XT features a high output version of the 6.2 L V8 with approximately 500 hp. For the 2011 model year, the 6.2 L V8 was introduced in Ford's Super Duty
Ford Super Duty
For the 1999 model year, Ford shifted the F-250 and F-350 truck lines to a design mechanically and cosmetically distinct from that of the F-150. The F-350 was not available for 1998, while the F-250 was available that year with the F-150's body...

 pickups as a replacement for both the 5.4 L Triton
Ford Modular engine
The Ford Modular engine is Ford Motor Company's overhead camshaft V8 and V10 engine family, which has been produced in 4.6L, 5.0L , 5.4L, and 6.8L variations. Contrary to popular belief, the Modular engine did not get its name from its design or sharing of certain parts among the engine family...

 V8 and the 6.8 L Triton
Ford Modular engine
The Ford Modular engine is Ford Motor Company's overhead camshaft V8 and V10 engine family, which has been produced in 4.6L, 5.0L , 5.4L, and 6.8L variations. Contrary to popular belief, the Modular engine did not get its name from its design or sharing of certain parts among the engine family...

 V10 and in the F-150 as the premium engine option, though it is not available in all configurations.

Applications for the 16-valve SOHC VCT 6.2 L V8 include the following:
  • 2010 F-150
    Ford F-Series
    The F-Series is a series of full-size pickup trucks from Ford Motor Company which has been sold continuously for over six decades. The most popular variant of the F-Series is the F-150...

     SVT
    Special Vehicle Team
    Special Vehicle Team, also known as SVT, is an arm of Ford Motor Company responsible for the development of the company's highest-performance vehicles, much like Mercedes-AMG, BMW M, Chrysler's SRT division and GM's Performance Division. SVT is the successor to the SVO division.The current SVT...

     Raptor, 411 hp @ 5500 rpm, 434 lbft @ 4500 rpm
  • 2011 Ford F-Series
    Ford F-Series
    The F-Series is a series of full-size pickup trucks from Ford Motor Company which has been sold continuously for over six decades. The most popular variant of the F-Series is the F-150...

    , 411 hp @ 5500 rpm, 434 lbft @ 4500 rpm
  • 2011 Ford F-Series Super Duty
    Ford Super Duty
    For the 1999 model year, Ford shifted the F-250 and F-350 truck lines to a design mechanically and cosmetically distinct from that of the F-150. The F-350 was not available for 1998, while the F-250 was available that year with the F-150's body...

    , 385 hp @ 5500 rpm, 405 lbft @ 4500 rpm

7.0 L

Roush Racing field tested an experimental, larger displacement version of the Boss engine code named "777" (7.0 L, 700 hp @ 7,000 rpm) at National Mustang Racers Association (NMRA) events around the United States. The 777 Boss is naturally aspirated and produced up to 800 hp on e85 biofuel.

Video: http://www.powertvonline.com/video_detail.php?mId=771
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