2008
A midsized V6 with advanced technology and a proven history of reliability
Vortec 4300
Features & Benets
Industrial Engine
Designed to use gasoline, propane gas and natural gas Cracked powder metal connecting rod to more accurately position the cap to the rod during engine assembly Roller valve lifters and roller rocker arms for reduced friction and improved fuel economy Nodular iron crankshaft has undercut and rolled llets for durability Counter-rotating balance shaft for smooth performance and low noise Composite rocker arm cover for noise reduction Timing chain tensioner maintains optimal chain tension for the life of the engine Lead-free main bearings and balance shaft rear bearing 58X crankshaft position encoder with digital sensor to ensure accurate ignition timing throughout the operating range Cylinder block incorporates the following new features: Dual at response knock sensor bosses Revised bolt pattern for new front cover Threaded block heater/drain hole - left side New cast aluminum front cover epoxy painted for corrosion protection New cast aluminum oil pan for increased strength and noise reduction New water pump features include: Revised housing - a reservoir cavity replaces the weep hole Upgraded shaft, bearing, and seal for extended life Shrouded impeller for improved efciency
The Vortec 4300 V6 engine features overall size and weight advantages with superior power-to-weight ratios and proven durability.
Available Options
An electronic control module (ECM) for optimizing fuel and spark requirements is available in kit form (gasoline only). Integral Air Fuel Module (IAFM) two-piece inlet manifold with electronic throttle body and high voltage switch (HVS) distributor with ignition coil Heavy-duty cylinder heads with exhaust seat inserts, induction hardened inlet seats, and low load valve springs
2008
Vortec 4300
Industrial Engine
Vortec 4300 Feature Focus
GM Powertrain takes its expertise in designing outstanding Vortec truck and SUV engines and leverages it to make sophisticated yet extremely durable industrial engines. In addition, the well-recognized Vortec brand name by itself has become a valuable selling tool for OEMs.
Hydraulic roller valve lifters and roller rocker arms help provide smooth, quiet and efcient operation.
All GM industrial engines are Vortec engines. Vortec means uncompromised power outstanding power with no sacrice in fuel efciency or durability and very little required maintenance.
Investment Cast Roller Rocker Arm
A counter-rotating balance shaft cancels the primary engine vibrations found in 90 V6 engines. The result is smooth performance and low noise.
Hydraulic Roller Valve Lifter
Roller rocker arms and hydraulic roller valve lifters help to provide smooth, quiet and efcient operation.
The Vortec 4300 industrial engine offers smooth performance and excellent durability.
The Integral Air Fuel Module (IAFM) incorporates several components into one assembly. The bottom of the inlet manifold is made of iron and the top is made of aluminum. Integrated into the module is an electronic throttle body. Also included is a combination manifold absolute pressure (MAP) and manifold air temperature (MAT) sensor.
2008
Vortec 4300
Specications
Industrial Engine
Type: 4300 V6 Gen 1e Displacement: 262 cid (4300 cc) Engine Orientation: Longitudinal Compression Ratio: 9.4:1 Valve Conguration: Overhead Valves (2 valves per cylinder) Assembly Site: Romulus, Michigan Valve Lifters: Hydraulic Roller Firing Order: 1-6-5-4-3-2 Bore x Stroke: 101.60 x 88.39 mm Bore Center: 111.76 mm Bore Area: 486.44 cm Fuel System: OEM Dened Fuel Type: Regular Unleaded Propane and Natural Gas Horsepower: 190 hp (142 kW) @ 4400 rpm (Gasoline) 183 hp (136 kW) @ 4000 rpm (Propane) 164 hp (122 kW) @ 4000 rpm (Natural Gas) Torque: 253 lb-ft (343 Nm) @ 2800 rpm (Gasoline) 247 lb-ft (335 Nm) @ 2800 rpm (Propane) 230 lb-ft (312 Nm) @ 1400 rpm (Natural Gas)
Actual power levels may vary depending on OEM calibration and application.
400
183 hp (LP)
190 hp (Gas)
200
164 hp (CNG)
300
TORQUE (lb-ft)
230 lb-ft (CNG) 253 lb-ft (Gas) 247 lb-ft (LP)
150
HORSEPOWER (hp)
200
100
100
50
0 0 10 20 30 40 50 60 ENGINE SPEED (rpm x 100)
Actual power levels may vary depending on OEM calibration and application.
Fuel Shutoff: OEM Dened Shipping Weight: 430 lb (195 kg) Emissions Controls: N/A Materials: Block: Cast Iron GM232-M Cylinder Head: Cast Iron Intake Manifold: Cast Iron (1-piece) Cast Iron/Aluminum (2-piece) Exhaust Manifold: None Main Bearing Caps: Cast Iron GM232-M Crankshaft: Nodular Iron Camshaft: 5150 Steel Billet Connecting Rods: Powdered Metal
Information may vary with application. All specications listed are based on the latest product information available at the time of publication. The right is reserved to make changes at any time without notice.
661.50 (26.04)
510.10 (20.08)
677.78 (26.68)
283.09 (11.15)
255.05 (10.04)
GM Powertrain
www.gmpowertrain.com
2007 General Motors Corporation PRINTED IN U.S.A. 6/07
