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Wards 10 Best Engines is an annual list of the ten "best" automobile engines available in the U.S. market, that are selected by Wards AutoWorld magazine. The list was started in 1994 for model year 1995, and has been drawn every year since then, published at the end of the preceding year.
Crate engines are often seen as an economical and more reliable solution as opposed to engine overhauls or custom builds. Such engines are built by specialist engine builders, working in clean and well-equipped workshops, rather than general purpose repair garages. Crate engines may be either brand new, or substantially rebuilt.
An example is the engine block, in particular the cylinder engine bores, which must withstand combustion. Instead of disposing of engine blocks, remanufacturing enables re-use by coating them with plasma transferred wire arc spraying . Remanufacturing by recoating of parts is also popular in aviation and with geothermal pipe.
The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series.
The new engine control software makes the engine capable of 400 hp (298 kW) at 2,800 rpm and 800 lb⋅ft (1,085 N⋅m) at 1,600 rpm while achieving better fuel economy and without any physical changes to the engine. [18] The 2015 engines are rated at 440 hp (328 kW) and 860 lb⋅ft (1,166 N⋅m). [19]
The engine is rebuilt and tuned to a max power of 425 bhp (317 kW) at 6500 rpm, with a torque figure of 390 lb⋅ft (529 N⋅m) at 5000 rpm. Noble has used forged pistons, an oil cooler, a larger baffled oil sump and extra cooling ducts to maintain its durability. 29 L/100 km (8.1 mpg ‑US ; 9.7 mpg ‑imp ).
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