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Production on the 3.3 was stopped in 2010 after a run of 5,076,603 [2] engines, while the 3.8 remained in production until May 2011 in Trenton, Michigan for the Jeep Wrangler. Both use a cast iron block and aluminum heads .
In engine blocks made of gray cast iron, weight can be reduced by optimizing the structure and thin-wall casting. With this casting technique, a wall thickness of as little as about 3 mm is generally possible. In comparison, the walls of cast iron engine blocks are usually from 4.0 to 5.5 mm thick. Using vermicular graphite cast iron (GGV), a ...
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 engine features a cast iron block, and pistons with shallow crowns to save weight. The block uses a bedplate featuring a perimeter wall with transverse webbings for durability and quiet operation at high engine speeds. The pistons are attached to fracture-split forged, powdered metal connecting rods using semi-floating press-fit pins.
This was so named because it began with Chevrolet's V8 engines. Chevrolet big-block V8s; Chevrolet small-block V8s; GM Vortec 4300 90° V6; GM Iron Duke RWD inline 4 (early RWD Variants, later versions may use a FWD pattern, and have two possible starter locations) Jeep with GM Iron Duke inline 4 2.5L/151 in³ (1980-1983).
In the past when it was called GM-Saginaw Product Company (SPC) a cloverleaf casting symbol mark was cast onto the iron component. [1] [2] The location has been the primary source of engine block and cylinder heads for all of GM's engines, to include Oldsmobile, Pontiac, Cadillac, Chevrolet, Buick and GMC for most of the 20th century.
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The RB engines, produced from 1959 to 1979, are raised-block (taller) versions of the B engines. All RB engines have a 3 + 3 ⁄ 4 in (95.3 mm) stroke, with the bore being the defining factor in engine size. All RB wedge engines share a deck height of 10.725 in (272.4 mm), and were fitted with 6.768 in (171.9 mm) long connecting rods, resulting ...