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It was conceived and prototyped as a Magnum 5.9 with two extra cylinders and a longer stroke of 3.88 in (98.6 mm). The first-generation Viper V10 engine had a displacement of 7,990 cc (8.0 L; 487.6 cu in) and produced 400 hp (406 PS; 298 kW) at 4600 rpm and 465 lb⋅ft (630 N⋅m) of torque at 3600 rpm.
Based on the LA-series 239 cu in (3.9 L) V6, the 3.9 L Magnum featured the same changes and upgrades as the other Magnum engines. The 3.9 L is essentially a 5.2 L V8 with two cylinders removed. Power increased substantially to 180 hp (134 kW) at 4,400 rpm and from 195 to 220 lb⋅ft (264 to 298 N⋅m) at 3,200 rpm, as compared with the previous ...
A narrower range of engines was offered: the base power plant was the 225 cu in (3.7 L) slant-6, now with top-fed hydraulic tappets, and the 318 cu in (5.2 L) and 360 cu in (5.9 L) LA-series V8s. The slant-6 was replaced by the 3.9 L (237 cu in) V6 for 1988; in 1992, it and the V8s became Magnum engines.
The "GEN-3" engines were available in Jeep utility vehicles starting in 1971. [3] It is not the same as Chrysler's 360 V8. [4] Chrysler continued production of the AMC 360 engine after the 1987 buyout of AMC to power the full-size Jeep Wagoneer (SJ) SUV that was produced until 1991. [5]
The ISL engines were manufactured at plants in Rocky Mount, North Carolina and Darlington, England. [ 3 ] In 2016 onwards, the ISL9 was simplified to L9 , though physically it shares no resemblance to the old L10 engine: The current L9 engine is a stroked version of the C8.3 engine platform, while the current M11 engine is a stroked version of ...
The engines were substantially upgraded for 1992 (3.9 L and 5.2 L) and 1993 (5.9 L) with multi-port fuel injection, new manifolds, and higher-compression cylinder heads for noticeably higher output. These newly revised engines were marketed under the "Magnum" name.
The cylinder heads differ as well. The Duratec V6s are A319 cast aluminum, the AML V12s are A365-T6 cast aluminum with unique combustion chambers, a higher compression ratio, a precision water jacket and unique intake ports (one of the design features that significantly improved low-end torque while maintaining high-end power).
The 5.9 L; 359.0 cu in (5,883 cc) ISB (Interact System B) is one of the largest straight-six engines used for light truck vehicles and school buses, and the improved high output 600 version was on the Ward's 10 Best Engines list for 2004.