The 360 inch V8 engine was used by Chrysler-Dodge between the years 1971 and 2003. Its relatively efficient design and excellent durability are the primary reasons why it was so widely used. It has been modified into different versions throughout its long life and was used in the 5.9 version of the Grand Cherokee in 1999 to create the fastest SUV of its time.
First Release
When the Dodge 360 engine was first released in 1971 it came with a two-barrel carburetor. It had a 3.58 inch bore and stroke and a 8.7 to 1 compression ratio. The engine developed 255 horsepower firing at 4,400 revolutions per minute (rpm). The Dodge 360 engine sacrificed power for efficiency in future models.
1999 Grand Cherokee
The Dodge 360 is part of the LA series of engine designs. The "L" stands for lightweight and the "A" stands for automotive. The 1999 version of the engine used in the Grand Cherokee was designed to have 245 horsepower and 330 pounds of torque. It uses a liquid cooled, forced circulation coolant system and is lubricated with a full flow filtration system. The pistons are elliptically turned to allow for expansion during normal operating conditions. The cylinder block and cylinder head are both cast iron and the pistons are made of a cast aluminum alloy.
1975 Dodge Charger
When the Dodge 360 was used in the Charger in 1975 it wasn't as powerful as later versions. It was still a V-8 engine, but came with only 180 horsepower at 4,000 rpm and was intended for use in cars smaller than an SUV. It used a two- and four-barrel carburetor and had a compression ratio of 8.4 to 1. The standard rear axle ratio was 2.45.
1976 Dodge Charger
The 360 engine in the 1976 version of the Charger was an only slightly modified version of the previous model. It came with a three-speed automatic transmission and slightly less powerful engine. It was capable of 170 horsepower at 4,000 rpm, and possessed 280 pounds of torque. The standard rear axle ratio was increased to 2.71. The two barrel carburetor and 8.4 to 1 compression ratio remained the same.
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