Locate the GM 4.3 engine serial number on the left (remember, engines are always viewed from the rear; if the engine were in a vehicle, the left side is the driver’s side) front bank under the cylinder head. Record the last two letters of the number.Click to see full answer. Consequently, what is a 4.3 engine?The 4.3 L (262 cu in) V6 is the last and most successful engine in the Chevrolet 90-degree V6 engine family. This engine was introduced in 1985 as a replacement for the 229 cu in (3.8 L) V6 in the full-size Chevrolet, the Chevrolet El Camino and Chevrolet Monte Carlo.Likewise, what horsepower is 4.3 liter engine? 4.3L Vortec 4300 Engine Specs 4.3L Vortec V6 Engine Specs LU3 EcoTec3 LV3 Displacement (cu in / cc): 262 / 4300 262 / 4300 Horsepower: 195 hp @ 4600 RPM 285 hp @ 5300 RPM Torque: 260 lb.-ft. @ 2800 RPM 305 lb.-ft. @ 3900 RPM Bore and Stroke (in / mm): 4 x 3.48 / 101.6 x 88.4 3.92 x 3.62 / 99.6 x 92 Considering this, how do I identify a Chevy 6 cylinder engine? Locate the engine ID number. On small-block V8s, it is located on the passenger-side front of the engine block, right below the cylinder head. Big Block V8s normally have the number in the front, near the timing chain cover and in-line six-cylinders locate it on the passenger side behind the distributor.Is my engine a 305 or 350?Matching the suffix portion of the engine ID number properly identifies the engine as a 305 or 350 cubic-inch. If a bore measurement is to be taken, Popular Hot Rodding identifies the 305s small bore at 3.736 inches. Both the 305 and 350 have the same 3.48-inch stroke.
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