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The Chevrolet small-block engine refers to one of the several gasoline-powered vehicle engines manufactured by General Motors. These include: The first or second generation of non-LS Chevrolet small-block engines; The third, fourth, or fifth generation of LS-based GM engines; The Chevrolet Gemini small-block engine
This block is one of three displacements, 302/327/350, that underwent a crankshaft bearing diameter transformation for 1968 when the rod-journal size was increased from the 2 in (50.8 mm) diameter small-journal to a 2.1 in (53.3 mm) large-journal and a main-journal size that was increased from 2.3 in (58.4 mm) to 2.45 in (62.2 mm).
A racing version of this engine exists and is used on mini prototypes like the Juno SS3 V6. It is a 3.0 L (2,967 cc) naturally aspirated non variable timing engines producing between 350 and 400 hp (261 and 298 kW) with a redline of around 8700 rpm. The engine has a 40-hour racing life span before it needs to be rebuilt with rings and bearings ...
The LS4 is adapted for transverse front-wheel drive applications, with a bellhousing bolt pattern that differs from the rear-wheel-drive blocks (so as to mate with the 4T65E). According to GM, "the crankshaft is shortened 13–3 mm (0.51–0.12 in) at the flywheel end and 10 mm (0.39 in) at the accessory drive end – to reduce the length of ...
In 2001, the engine was fitted with a variable intake control system which boosted output to 180 hp (134 kW) at 5000 rpm and 210 lb⋅ft (285 N⋅m) at 4000 rpm. The engine was especially suited for transverse applications in Chrysler's minivans, but was also used in a longitudinal front-wheel-drive setup on 1993-1997 LH platform cars.
General Motors is adding over 132,000 heavy-duty pickups in the U.S. to a previous recall for tailgate release switches that can short circuit and open the gates while the trucks are in park. The ...
Even with the benefit of today's technology (aftermarket rods and stroker cranks), the upper limit of a Y-block is about 348 cu in (5.7 L), while the Chevrolet could be modified well past the factory limit of 400 cu in (6.6 L). The result was the introduction in 1958 of the 332 CID "big block" Ford FE engine which ultimately grew to 428 cu in
Outlays for Social Security, Medicare and military spending rose, but one bright spot was a $7 billion or 8% decline in the Treasury's public debt service costs to $82 billion, the first year-on ...