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Some 1985 model year vehicles would have a 1986 engine due to service replacement – cylinder blocks were shipped with oil pans. [3] 1987 saw new center bolt valve covers and hydraulic roller lifters. [4] For the 1992 model year, the 4.3 L (262 cu in) had its block design modified to allow a balance shaft to be installed. [5]
1987 – The valve cover surfaces were changed so that the mounting lip was raised and the bolt location was moved from 4 bolts on the perimeter to 4 bolts along the centerline of the valve covers (this design debuted on the Corvette in 1986, and the Chevrolet 4.3L 90 degree V6 the year before). Also changed were the mounting angles of the two ...
At that time, the only "small" engines generally offered by GM were built by the Chevrolet division including the 140 cu in (2.3 L) OHC aluminum inline-four engine used in the subcompact Chevrolet Vega and a 250 cu in (4.1 L) straight-6 used in smaller Chevy, Buick, Oldsmobile and Pontiac models, whose design roots dated back to the 1962 Chevy ...
Chevrolet 153 Inline 4 (Chevy II, pre-Iron-Duke - includes the Vortec 3000/181 industrial/marine crate motor) Detroit Diesel V8 6.2L and 6.5L; Duramax V8; Generation III V8s with modifications. These modifications include an additional bolt hole at the top of the pattern, and attachment points for cast oil pans to lower bellhousing extensions ...
The High Value engine family from General Motors is a group of cam-in-block or overhead valve V6 engines.These engines feature cast iron blocks and aluminum heads, and use the same 60° vee bank as the 60° V6 family they are based on, but the new 99 mm (3.90 in) bore required offsetting the bores by 1.5 mm (0.059 in) away from the engine center line.
Chevrolet vehicles Chevrolet engines including Chevrolet Stovebolt / Blue Flame I6: 1913: 2004: Located at 300 N. Chevrolet Ave. (formerly known as Wilcox Street). The complex originally included metal stamping, body assembly, vehicle assembly, engine assembly, and various component manufacturing plants. Flint North Powertrain: Flint, Michigan ...