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The large-journal connecting rods were thicker (heavier) and used 3 ⁄ 8 in (9.5 mm) diameter cap-bolts to replace the small-journal's 11/32. 1968 blocks were made in 2-bolt and 4-bolt versions with the 4-bolt center-three main caps each fastened by two additional bolts which were supported by the addition of thicker crankcase main-web bulkheads.
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
The 400.9-cubic-inch (6.6 L) 401 had a 4.875 in × 3.58 in (123.8 mm × 90.9 mm) bore and stroke. [ 12 ] [ 17 ] It produced 210 hp (157 kW) gross at 3400 RPM and 377 lb⋅ft (511 N⋅m) gross torque at 1400 RPM, while the Magnum version introduced in 1966 produced 237 hp (177 kW) gross at 4000 RPM and 372 lb⋅ft (504 N⋅m) gross torque at ...
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 in 3 (1980-1983). These use a Chrysler custom Torqueflite 904 automatic transmission with an integral Chevrolet bellhousing.
Chevrolet small-block engine (Gen 1: 3.736-inch bore family) 1988–1993 L03 175 hp (130 kW) @ 4000 RPM 270 lb⋅ft (370 N⋅m) @ 2400 RPM less than 8,500 lbs GVWR 1994–1995 175 hp (130 kW) @ 4200 RPM 265 lb⋅ft (359 N⋅m) @ 2800 RPM less than 8,500 lbs GVWR [13] Chevrolet small-block engine (Vortec 5000) 1996–1998 L30
The Chevrolet Van or Chevy Van (also known as the Chevrolet/GMC G-series vans and GMC Vandura) is a range of vans that was manufactured by General Motors from the 1964 to 1996 model years. Introduced as the successor for the rear-engine Corvair Corvan/Greenbrier , the model line also replaced the panel van configuration of the Chevrolet Suburban .
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The lower half of the main bearings are typically held in place by 'bearing caps' which are secured to the engine block using bolts. The basic arrangement is for each bearing cap to have two bolts, but some engines may have four or six bolts per bearing cap (often referred to as "four-bolt mains" or "six-bolt mains" engines).