Accurate Engines is an industry leading remanufacturer of the Chevrolet 4.3 liter engine. Our remanufactured Chevy 4.3 liter engines are being shipped daily to warranty companies, Chevrolet dealerships, engine repair facilities and directly to Chevy vehicle owners.High production volumes allow us to offer the 4.3 liter Chevy remanufactured engine online at drastically reduced rates.Our 4.3 liter Chevy remanufactured engine comes with a 100,000 Mile nationwide warranty. Our remanufactured 4.3 Liter Chevrolet engines include the following new parts:.
Block Bore. Crank Ground. Connecting Rods Reconditioned. Cylinder Heads Completely ReconditionedIf this is not the engine you are looking for and we will find it for you.
1985 to 1997 $1,3 and newer $1,595.00Plus $300.00 core fee (refundable)& $389.00 Shipping. Transit time will vary based on your location.
Not to be confused with. 90° V6 engineOverviewProduction1978-2014Layout90°200 cu in (3.3 L)229 cu in (3.8 L)262 cu in (4.3 L)3 1⁄ 2 in (88.9 mm)3.736 in (94.9 mm)4 in (101.6 mm)3.48 in (88.4 mm)materialmaterialCast iron2 valves x cyl.8.2:1, 8.35:1, 8.6:1, 9.1:1, 9.2:1, 9.3:1CombustionTD06-17C with Water/Air (on & only)system2- Dualjet or 4-bbl.Fuel typeOutputoutput94–280 hp (70–209 kW)output154–360 lb⋅ft (209–488 N⋅m)ChronologyPredecessorThe 90° V6 family of began in 1978 with the Chevrolet 200 cu in (3.3 L) as the base engine for the all new 1978. The original engine family was phased out in early 2014, with its final use as the 4.3 L (262 cu in) V6 engine used in Chevrolet and trucks and vans. Its phaseout marks the end of an era of designs dating back to the 1955. A new Generation V 4.3 L (262 cu in) V6 variant entered production in late 2013, based on the used in the 2014 Chevrolet Silverado. Contents.Generation I These engines have a 90° V-block with 12 valves activated by a valvetrain. All engines have cast iron blocks and cylinder heads.
The engines are based on the, and the V6 is formed by the removal of the #3 and #6 cylinders. The V6s share the same 4.4-inch (110 mm) bore spacing and 9.025-inch (229.2 mm) deck height as the. Many parts are interchangeable between the 90° V6 and the small block V8 including valvetrain components, bearings, piston assemblies, lubrication and cooling system components, and external accessories. The 90-degree V6 engine uses the same transmission bellhousing pattern as the Chevrolet small-block V8 engine. The oil pan dipstick is located on the passenger side above the oil pan rail; this design was phased in on both the V6-90 and Small Block Chevrolet assembly lines (for engines manufactured after 1979) sharing the same casting dies. All the engines use a 1-6-5-4-3-2.
The engines in this family are, and have been used in cars and trucks, industrial, and marine applications. As of 2012, the Chevrolet 90° V6 is currently produced at the Division plant in.3.3L (200 CID) Introduced in 1978, the 200 cu in (3.3 L) replaced the larger as the base engine for Chevrolet's new downsized intermediate line. The 200 cu in (3.3 L) used a unique 3 1⁄ 2-by-3.48-inch (88.9 mm × 88.4 mm) bore and stroke (the Chevrolet 305 and 350 cu in (5.0 and 5.7 L) V8 engines shared the same stroke dimension). These bore and stroke dimensions were later used by the V8 Chevrolet engine. Also like the small block V8 engines, the 200 cu in (3.3 L) V6 used 2.45-inch (62.2 mm) and 2.1-inch (53.3 mm) rod bearing diameters.Being a 90-degree V6, Chevrolet took steps to eliminate the rough running tendencies of the 200.
The has each of its throws offset by 18 degrees for each pair of rods. This required the connecting rods to have 0.05-inch (1.3 mm) narrower ends as well as a thrust bearing to be installed between each pair of rods. However, the connecting rods were still the same 5.7-inch (140 mm) length as most other small-block Chevrolet V8 engines. This produced an engine with a semi-even fire sequence of 132 degrees/108 degrees.The 200 cu in (3.3 L) V6 was only produced for 1978 and 1979. It was available only with a 2-barrel. In 1978, the 200 cu in (3.3 L) used the 2GC carburetor and in 1979 it used a Rochester Dualjet carburetor.
The smaller Dualjet carburetor caused a slight decrease in power.YearHorsepowerTorqueBore and StrokeCarburetorCompression Ratio197895 hp (71 kW) @ 3800 rpm160 lb⋅ft (217 N⋅m) @ 2000 rpm3 1⁄ 2 in × 3.48 in (88.9 mm × 88.4 mm)2-BBL 2GC8.2:1197994 hp (70 kW) @ 4000 rpm154 lb⋅ft (209 N⋅m) @ 2000 rpm2-BBL M2ME3.8L (229 CID) The 229 cu in (3.8 L) engine was first introduced for the 1980 model year. This engine replaced the in full-size and as the new base V6. Additionally, the intermediate Chevrolet Malibu and Monte Carlo also used the 229 cu in (3.8 L) as a replacement for both the 200 cu in (3.3 L) V6 and the. Also used this engine starting with its 1980 A11 Taxi and A12 sedans. Both the Buick V6 and the 229 cu in (3.8 L) Chevrolet V6 are 90-degree V6 engines, and both are often referred to as the 3.8L V6. These engines should not be confused as being the same, and are completely unique engine designs.The 229 cu in (3.8 L) has a 3.736-by-3.48-inch (94.9 mm × 88.4 mm) bore and stroke, identical to the Chevrolet 305 cu in (5.0 L) V8 engine. The 229 cu in (3.8 L) used the same 2.45-inch (62.2 mm) main bearing and 2.1-inch (53.3 mm) rod bearing diameters as the 200 cu in (3.3 L) V6 engine.
Also like the 200 cu in (3.3 L) V6, the 229 cu in (3.8 L) used the same crankshaft with the 18-degree offset throws and the same 5.7-inch (140 mm) connecting rods with 0.05-inch (1.3 mm) narrowed ends. It came equipped with 1.84-inch (46.7 mm) intake valves and 1 1⁄ 2-inch (38.1 mm) exhaust valves. The 229 cu in (3.8 L) V6 was only equipped with a 2-barrel carburetor. For 1980 the 229 cu in (3.8 L) used a mechanical Dualjet.
From 1981 to 1984 the electronic Dualjet was used along with the GM's CCC (Computer Command Control) system. The 229 cu in (3.8 L) was rated between 110 and 115 hp (86 kW).YearHorsepowerTorqueBore and StrokeCarburetorCompression Ratio1980115 hp (86 kW) at 4,000 rpm175 lb⋅ft (237 N⋅m) at 2,000 rpm3.736 in × 3.48 in (94.9 mm × 88.4 mm)2-BBL M2ME8.6:110 hp (82 kW) at 4,200 rpm170 lb⋅ft (230 N⋅m) at 2,000 rpm2-BBL E2ME19 hp (82 kW) at 4,000 rpm190 lb⋅ft (258 N⋅m) at 1,600 rpm4.3L (262 CID) 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.
It also replaced the in the Chevrolet full-size trucks and full-size vans (including the mid-sized ) as the new base six-cylinder engine.The 4.3 L (262 cu in) V6 has a 4 in × 3.48 in (101.6 mm × 88.4 mm) bore and stroke, identical to the 350 cu in (5.7 L) Chevrolet V8 engine. To create a true even fire engine, Chevrolet produced a crankshaft with 30-degree offsets between each rod pin. Consequentially, rod journals were increased to a larger 2 1⁄ 4 inches (57.2 mm). The connecting rods used on the 4.3 L (262 cu in) are therefore unique to this engine, being 5.7 inches (140 mm) in length, but having the larger 2 1⁄ 4 inches (57.2 mm) journals. The 4.3 L (262 cu in) also used larger valves than the 229 cu in (3.8 L) V6, with a 1.94-inch (49.3 mm) intake valve and a 1 1⁄ 2-inch (38.1 mm) exhaust valve (also shared with the 350).In 1986 and 1987, the 4.3 L (262 cu in) engine saw engine design upgrades similar to the Chevrolet small block V8. In 1986, the rear main crankshaft oil seal was changed from a two piece to a one piece seal.
Some 1985 model year vehicles would have a 1986 engine due to service replacement - cylinder blocks were shipped with oil pans. 1987 saw new center bolt valve covers and hydraulic roller lifters.For the 1992 model year, the 4.3 L (262 cu in) had its block design modified to allow a to be installed.
Even though the 4.3 L (262 cu in) is an even fire V6, the 90-degree block layout is not ideal for smoothness. The balance shaft on the 4.3 L (262 cu in) is installed above the top timing gear, and runs through the top of the lifter valley. It is gear driven off the timing chain, and therefore a new timing chain cover was designed for these balanced 4.3L V6s.
Balance shaft engines do not have provisions for a mechanical fuel pump unlike the non-balance shaft motors which retained the cast in boss.As of the 2013 model year, the 4.3 L (262 cu in) was still in production although the distributor was eliminated in the late 2000s where a system (using a 58x crankshaft position sensor based on the GEN IV LSx) was phased in. This resulted in a new design timing cover with a wider bottom flange, making it incompatible with the 1996-06 LU3/L35. The only vehicles using the 4.3 L (262 cu in) by that time were the GMT900 light duty trucks and vans.As of March 7, 2014, the last 4.3 L (262 cu in) engine rolled off the line at Romulus Powertrain.
Chevrolet Performance still lists the LU3 motor in their product catalog. Mercury Marine, which sells its engines under the MerCruiser brand, developed a 4.5L V6 based on the 4.3 L (262 cu in) architecture using similar dimensions.LB1 and LB4 In 1985, the 4.3 L (262 cu in) was either equipped with, LB4 or a Rochester 4-Barrel carburetor, RPO LB1. The Chevrolet Caprice, Chevrolet Monte Carlo, Pontiac Parisienne, and Pontiac Grand Prix used the LB4 rated at 130 hp (97 kW). Pick-ups and Vans used the LB1 version rated at 155 hp (116 kW).
The LB1 used in trucks and vans was referred to as Vortec in Chevrolet literature (named after a combustion chamber design known as a swirl port which twists the fuel mix from the intake ports as introduced on the Cavalier 2.0L motor), and this name continued to be used with all truck and van 4.3 L (262 cu in) V6s until present day.In 1986, the 4.3 L (262 cu in) engine used in passenger cars saw an increase in power to 140 hp (104 kW). This engine remained unchanged until 1990 when it was last used in taxi and Police Chevrolet Caprices.
Chevy 4.3 Vortec Engine Diagram
In 1986 the Chevrolet Astro and GMC Safari vans used the fuel-injected LB4 instead of the LB1. In 1987, the Chevrolet full size pick-ups and full-size vans were upgraded to use the LB4 throttle-body injection version of the 4.3 L (262 cu in). The mechanical fuel pump boss was retained but the hole was undrilled (marine applications had the fuel pump boss drilled and tapped). From 1987 onwards LB4s output was 160 hp (119 kW) for pickups, while full-size vans were rated at 150 hp (112 kW). In 1988 the S-series trucks and S-Blazer and Jimmys had the LB4 4.3 L (262 cu in) as an available option (the accessory drive was upgraded to a serpentine belt drive), which later replaced the 2.8 as the base V6.
The LB4 continued until 1996 with minor variations in power, but without any major change. While a majority of LB4s did not have a balance shaft, some 1994 model year engines may have a balance shaft since production of the cylinder block used on the L35 was phased in for both induction systems. 1993 engineIn 1991 GMC introduced the limited edition truck that used a turbocharged 4.3 L (262 cu in) V6. This engine used a TD06-17C, Water/Air and electronic multi-point fuel injection. Although GM made these modifications to the engine, it was still referred to with the RPO LB4 code.
The majority of the LB4's long-block was shared with the turbo version. However, the vehicles that used the 4.3 L (262 cu in) turbo engine also included RPO code ZR9. Internal engine upgrades included nodular iron main bearing caps, graphite composite head gaskets with flanges and which lowered the engine compression to 8.35:1. A unique intake manifold that used the 48 mm (1.9 in) twin-bore throttle body from the 5.7L TPI Corvette engine was used on the engine's top end.The Turbocharged 4.3 L (262 cu in) was last used in the in the 1993 model year. The engine produced 280 hp (209 kW) at 4400 rpm and 360 lb⋅ft (488 N⋅m) of torque at 3600 rpm. Generation V.
See also: 4.3L (262 CID) Commencing with the 2014 model year, a new LV3 EcoTec3 4300 based on the GEN V (LT1) Small Block Chevrolet will become the new base motor for the next generation Chevrolet Silverado/GMC Sierra light duty trucks and will be phased in throughout the rest of the truck/van line after the 2015 model year, which will signal an end to a design dating back to 1955. Like its small block V8 counterparts, GM Powertrain also sells the motor for marine and industrial applications.LV3 LV3OverviewAlso calledEcoTec3Production2013-presentLayout90°4.3 L; 262.5 cu in (4,301 cc)99.6 mm (3.92 in)92 mm (3.62 in)materialmaterialAluminum2 valves x cyl.11.0:1CombustionsystemE92Fuel type,systemOutputoutput. 305 lb⋅ft (414 N⋅m) (gasoline). 330 lb⋅ft (447 N⋅m) (E85)ChronologyPredecessorThe 4.3 L (262.5 cu in) LV3 V6 is a new engine announced by GM at the end of 2012.
GM considers this a new engine design which inherits from its predecessors its displacement, 2-valve, 90-degree cylinder angle, and 4.4 in (111.8 mm) bore centers. It is based on the fifth generation and includes the same features such as, piston cooling jets, oil pump, and aluminum.
The engine is certified to 285 hp (213 kW) at 5300 and 305 lb⋅ft (414 N⋅m) at 3900 rpm on regular unleaded and 297 hp (221 kW) at 5300 rpm and 330 lb⋅ft (447 N⋅m) at 3900 rpm on. Emissions are controlled by a, Quick Sync 58X ignition, returnless fuel rail, fast-response O 2 sensor. It was launched in the all-new 2014 1500 and 2014 1500.Applications:. 2014–present 1500.
2014–present 1500See also., 3.5 and 3.9 V6s.Notes. Archived from on 2008-10-02. Retrieved 2008-10-30. ^. Retrieved 2008-11-04.
Harhaus, Volker, Michael Pocobello & Frank Tenkel (1991). The Turbo/Intercooled Syclone Engine. Society of Automotive Engineers, Inc. CS1 maint: Multiple names: authors list. Retrieved 2008-11-03. Retrieved 2008-11-03.
Retrieved 2013-10-09.References. Chappell, Pat (1995).
How To Rebuild A 4.3 Vortec Engine
The Standard Catalog of Chevrolet 1912–1990. Kraus Publications. Lenzke, James T. The Standard Catalog of Light Duty American Trucks. Kraus Publications. Harhaus, Volker, Michael Pocobello & Frank Tenkel (1991).
The Turbo/Intercooled Syclone Engine. Society of Automotive Engineers, Inc. CS1 maint: Multiple names: authors list.