Magnum V-8

The Magnum 5.2 L, released in 1992, was an evolutionary development of the 318 cu in (5.2 L) 'LA' engine with the same displacement. The 5.2 L was the first of the Magnum upgraded engines, followed in 1993 by the 5.9 L V8 and the 3.9 L V6. At the time of its introduction, the 5.2 L Magnum created 230 HP SAE net. Production of this engine lasted until 2003, when it was completely replaced by the 4.7 L.

General characteristics:

    Engine Type: 90° V-8 OHV 2 valves per cylinder
    Bore & Stroke: 3.91 in × 3.31 in
    Displacement: 318 cu in (5.2 L)

Magnum V-10

As the design for the 5.2 L Magnum V8 was coming together in 1988, consideration was given to the design of a larger V10 iteration, mainly intended for use in Dodge Ram 2500 and 3500 pickups. This was to be Chrysler's first 10-cylinder engine, and can best be understood as a 5.9 L V8 with two cylinders added. This 488 CID engine was based on a cast iron block, and was rated for 310 hp HP SAE net. Bore and stroke was 4.00 in × 3.88 in, compression ratio was 8.4:1.

The 8.0 L Magnum V10 first became available in the 1994 model year Dodge Ram 2500 and 3500 pickups, and it was the most powerful gasoline-burning engine then available in any passenger pickup truck. The engine lasted through the 2003 model year, after which it was discontinued.

Viper V-10s

SR I (1st Generation) The Viper V10 is based on the Chrysler LA engine family, and appeared with the Dodge Viper in 1992. It was conceived and prototyped as a Magnum 5.9 with two extra cylinders and a longer stroke of 3.88 in. Lamborghini engineers revamped Dodge's cast-iron block V10 engine for the Viper by redesigning the block and heads in aluminium alloy. Prototype blocks were cast by Lamborghini, at the time a Chrysler division. The first-generation Viper V10 engine produced 400 SAE net at 4600 rpm and 465 lb?ft of torque at 3600 rpm.

SR II (2nd Generation) The second-generation engine, also displacing 8.0 L, produced 450 SAE net @ 5200 rpm and 490 lb?ft of torque @ 3700 rpm.

ZB I (3rd Generation) The third-generation engine, introduced on the 2003 Viper, had a displacement 8.3 L or 505.6 cu in with a bore and stroke of 4.03 in × 3.96 in. It was rated at 510 HP @ 5600 rpm and 535 lb?ft @ 4200 rpm of torque.

ZB II (4th Generation) For the 2008 Dodge Viper, the engine's output was increased to 600 HP @ 6100 rpm and 560 lb?ft @ 5000 rpm of torque via a slight displacement 8.4 L or 511.5 cu in. The bore was 4.055 in. It utilized variable valve timing, among the first in a pushrod engine.

VX I (5th Generation) The 2013 SRT Viper kept roughly the same displacement but further boosted power to 640 hp @ 6150 rpm and 600 lb?ft @ 4950 rpm of torque. Since 2015, power was raised up to 645 hp at 6200 rpm.