GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) is an 5328 cc (4.69 UK qt.) internal combustion reciprocating V8 engine. It has bore/stroke ratio of 96 mm × 92 mm (3.78 in × 3.62 in), and uses 9.45:1 compression. This engine was rated 295 hp (219.98 kW) at 5200 rpm and 330 lbf⋅ft (447.42 N⋅m) of torque at 4000 rpm. It was used in Chevrolet and GMC cars.

GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) engine performance rating according to SAE J1349 (SAE Net) standard.
Parameter Output
Power Rating 295 hp (219.98 kW) at 5200 RPM
Torque Rating 330 lbf⋅ft at 4000 RPM
GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) engine general specifications.
Parameter Value
Type Internal Combustion Reciprocating
Fuel Type Gasoline or Natural Gas (CNG)
Cylinder Configuration V8
Engine Displacement 325.13 in³
Bore 3.78 in
Stroke 3.62 in
Compression Ratio 9.45:1
Firing Order 1-8-7-2-6-5-4-3

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GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) engine block, crankshaft and pistons specifications.
Parameter Value
Block Material Cast iron
Crankshaft Material Cast nodular iron
Piston Material Cast alloy aluminum
Piston Pin Material Chromium steel
Connecting Rod Material Powdered metal
GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) spark plugs and wires specifications.
Parameter Value
Spark Plugs 25171803, 12567759
Spark Plug Gap 0.06 in
Wires Resistance (nominal) 1000 ohms per foot
GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) engine head and valvetrain specifications.
Parameter Value
Head Material Cast aluminum alloy
Valvetrain Type OHV
Valves per Cylinder 2
Camshaft Material Billet steel one piece
GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) air intake specifications.
Parameter Value
Air Intake Method Naturally Aspirated
GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) fuel injection specifications.
Parameter Value
Injection Type Multi Point
GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) oil pump specifications.
Parameter Value
Oil Pump Gerotor type
Oil Pump Pressure 24 Psi at 4000 RPM
GMC gasoline V8 LS based GM small-block Generation III 325 CID (5.3 L) Vortec 5300 L59 (2004-2007) water pump specifications.
Parameter Value
Water Pump Centrifugal vane impeller type pump
Condition Value
expand_moreEngine mechanical general specifications
Camshaft bearing bore 1 and 5 ⌀ 2.352.35 in
Camshaft bearing bore 2 and 4 ⌀ 2.332.33 in
Camshaft bearing bore 3 ⌀ 2.312.31 in
Crankshaft main bearing bore diameter 2.7512.752 in
Crankshaft main bearing bore out-of-round 0.00024 in
Cylinder bore diameter 3.783.78 in
expand_moreCylinder head deck height
Measuring from the centerline of crankshaft to the deck face 9.249.24 in
expand_moreCylinder head deck surface flatness
Measured within a 152.4 mm (6.0 in) area 0.0043 in
Measuring the overall length of the block deck 0.0087 in
Valve lifter bore diameter 0.8430.844 in
expand_moreCamshaft
Camshaft end play 0.000980.012 in
Camshaft journal ⌀ 2.162.17 in
Camshaft journal out-of-round 0.00098 in
expand_moreCamshaft lobe lift
Exhaust 0.27 in
Intake 0.27 in
expand_moreCamshaft runout
Measured at the intermediate journals 0.002 in
expand_moreConnecting rod
expand_moreConnecting rod bearing clearance
Production 0.000910.0026 in
Service 0.000910.003 in
expand_moreConnecting rod bore diameter
Bearing end 2.2252.225 in
expand_moreConnecting rod bore out-of-round
expand_moreBearing end
Production 0.000160.00031 in
Service 0.000160.00031 in
Connecting rod side clearance 0.00430.02 in
expand_moreCrankshaft
expand_moreConnecting rod journal diameter
Production 2.0992.1 in
Service 2.099 in
expand_moreConnecting rod journal out-of-round
Production 0.0002 in
Service 0.00039 in
expand_moreConnecting rod journal taper
expand_moreMaximum for 1/2 of journal length
Production 0.0002 in
Service 0.00079 in
Crankshaft end play 0.00160.0079 in
expand_moreCrankshaft main bearing clearance
Production 0.000790.002 in
Service 0.000790.0026 in
expand_moreCrankshaft main journal diameter
Production 2.5592.559 in
Service 2.559 in
expand_moreCrankshaft main journal out-of-round
Production 0.00012 in
Service 0.00031 in
expand_moreCrankshaft main journal taper
Production 0.00039 in
Service 0.00079 in
Crankshaft rear flange runout 0.002 in
expand_moreCrankshaft reluctor ring runout
Measured 1.0 mm (0.04 in) below tooth diameter 0.028 in
expand_moreCrankshaft thrust surface
Production 1.031.03 in
Service 1.03 in
Crankshaft thrust surface runout 0.00098 in
expand_moreCylinder head
expand_moreCylinder head thickness
Measured from the cylinder head deck to the valve rocker arm cover seal surface 4.73 in
expand_moreSurface flatness
expand_moreBlock deck
Measured within a 152.4 mm (6.0 in) area 0.0031 in
Measuring the overall length of the cylinder head 0.0039 in
Exhaust manifold deck 0.005 in
Intake manifold deck 0.0031 in
expand_moreValve guide installed height
Measured from the spring seat surface to the top of the guide 0.68 in
expand_moreIntake manifold
expand_moreSurface flatness
Measured at gasket sealing surfaces and measured within a 200 mm (7.87 in) area that includes 2 runner port openings 0.012 in
expand_moreOil pan
expand_moreFront cover alignment
expand_moreAt the oil pan
expand_moreRear housing alignment
expand_moreAt the oil pan
expand_moreOil pan alignment
expand_moreTo rear of the engine block at the transmission bell housing mounting surface
expand_morePiston rings
expand_morePiston ring end gap
expand_moreFirst compression ring
expand_moreMeasured in cylinder bore
Production 0.00910.017 in
Service 0.00910.02 in
expand_moreSecond compression ring
expand_moreMeasured in cylinder bore
Production 0.0170.028 in
Service 0.0170.03 in
expand_moreOil control ring
expand_moreMeasured in cylinder bore
Production 0.00710.03 in
Service 0.00710.032 in
expand_morePiston ring to groove clearance
expand_moreFirst compression ring
Production 0.00160.0033 in
Service 0.00160.0033 in
expand_moreSecond compression ring
Production 0.00160.0031 in
Service 0.00160.0031 in
expand_moreOil control ring
Production 0.000470.0079 in
Service 0.000470.0079 in
expand_morePistons and pins
expand_morePin
expand_morePiston pin clearance to piston pin bore
Production 0.0000790.00039 in
Service 0.0000790.00059 in
Piston pin diameter 0.9430.943 in
expand_morePiston pin fit in connecting rod bore
Production 0.000280.00079 in
Service 0.000280.00087 in
expand_morePiston
expand_morePiston diameter
Measured over skirt coating 3.783.781 in
expand_morePiston to bore clearance
Production −0.0014+0.00063 in
Service limit with skirt coating worn off 0.0028 in
expand_moreValve system
expand_moreValves
Valve face angle 45°
Valve face width 0.049 in
Valve lash Net Lash - No Adjustment
expand_moreValve lift
Intake 0.46 in
Exhaust 0.47 in
Valve seat angle 46°
Valve seat run-out 0.002 in
expand_moreValve seat width
Exhaust 0.07 in
expand_moreSeat width
Intake 0.04 in
expand_moreValve stem diameter
Production 0.3130.314 in
Service 0.31 in
expand_moreValve stem-to-guide clearance
expand_moreProduction
Intake 0.000980.0026 in
Exhaust .0.0250.066 mm
expand_moreService
Intake 0.0037 in
Exhaust 0.0037 in
expand_moreRocker arms
Valve rocker arm ratio 1.70:1
expand_moreValve springs
Valve spring free length 2.08 in
Valve spring installed height 1.8 in
expand_moreValve spring load
Closed 340 N
at 45.75 mm
Open 980 N
at 33.55 mm
Units:
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