LS1 Engine Specs

#214 - 01/30/02 12:19 PM LS1 Engine Specs
Joined: Dec 2000 Posts: 5,864 teamzr1 Owner - Pays the bills
teamzr1 Owner - Pays the bills Lives in Engine Bay Joined: Dec 2000 Posts: 5,864 America	The 5.7 Liter V-8 engine is identified as RPO-LS1 and VIN-G. Camshaft and Drive System A billet steel one-piece camshaft is supported by five bearings pressed into the engine block. The camshaft has a machined camshaft sensor reluctor ring incorporated between the fourth and fifth bearing journals. The camshaft-timing sprocket is mounted to the front of the camshaft and is driven by the crankshaft sprocket through the camshaft timing chain. The crankshaft sprocket is splined and drives the oil pump driven gear. A retaining plate mounted to the front of the engine block maintains camshaft location. Crankshaft The crankshaft is cast nodular iron. The crankshaft is supported by five crankshaft bearings. The bearings are retained by crankshaft bearing caps, which are machined with the engine block for the proper alignment and clearance. The crankshaft journals are undercut and rolled. The center main journal is the thrust journal. A crankshaft position reluctor ring is mounted at the rear of the crankshaft. The reluctor ring is not serviceable separately. Cylinder Heads The cylinder head assemblies are cast aluminum and have pressed in place powdered metal valve guides and valve seats. Passages for the vapor ventilation system are at the front and rear of each cylinder head. There are no exhaust gas passages within the cylinder head. Engine Block The engine block is a cam-in-block deep skirt 90 degree V configuration with five crankshaft bearing caps. The engine block is aluminum with cast in place iron cylinder bore liners. The five crankshaft bearing caps each have four vertical M10 and two horizontal M8 mounting bolts. The camshaft is supported by five camshaft bearings pressed into the block. Exhaust Manifolds The exhaust manifolds are one piece fabricated stainless steel and are a double wall design. The exhaust manifolds direct exhaust gases from the combustion chambers to the exhaust system. Each manifold has a single inlet for the Air Injection Reaction (AIR) system and a threaded opening for oxygen sensor installation. Intake Manifold The intake manifold is a one-piece composite design that incorporates brass threaded inserts for mounting the fuel rail and throttle body. The intake manifold is sealed to the cylinder heads by eight separate non-reusable silicone sealing gaskets which press into the grooves of the intake housing. The drive by wire throttle body assembly bolts to the front of the intake manifold. The throttle body is sealed to the intake manifold by a one-piece push in place silicone gasket. The fuel rail assembly with eight separate fuel injectors is retained to the intake by four bolts. The injectors are seated in their individual manifold bores with O-ring seals to provide sealing. A fuel rail stop bracket is retained at the rear of the left fuel rail by the intake manifold mounting bolts. A snap fit Manifold Absolute Pressure (MAP) sensor housing is mounted at the rear of the manifold and sealed by an O ring seal. The MAP sensor is installed and retained to the MAP sensor housing. There are no coolant passages within the intake manifold. Oil Pan The structural oil pan is cast aluminum. Incorporated into the design are the oil filter mounting boss, drain plug opening, oil level sensor mounting bore, and oil pan baffle. The oil pan cover, oil temperature sender and oil level sensor mount to the side of the oil pan. The alignment of the structural oil pan to the rear of the engine block and transmission bell housing is critical. Piston and Connecting Rod Assemblies The pistons are cast aluminum. The pistons use two compression rings and one oil control ring assembly. The piston is a Iow friction, lightweight design with a flat top and barrel shaped skirt. The piston pins are chromium steel. They have a floating fit in the piston and are retained by a press fit in the connecting rod. The connecting rods are powdered metal. The connecting rods are fractured at the connecting rod journal and then machined for the proper clearance. Valve Rocker Arm Cover Assemblies The valve rocker arm covers are cast aluminum and use a pre-molded silicone gasket for sealing. Mounted to each rocker cover are four individual ignition coils. Incorporated into the covers are the oil fill tube, the Positive Crankcase Ventilation (PCV) system passages, and the engine fresh air passages. Valve Train Motion is transmitted from the camshaft through the hydraulic roller valve lifters and tubular pushrods to the roller type rocker arms. The valve lifter guides position and retain the valve lifters. The valve rocker arms for each bank of cylinders are mounted on pedestals (pivot supports). Each rocker arm is retained on the pivot support and cylinder head by a bolt. Valve lash is net build. Engine Mechanical Specifications (LS1) General Data Engine Type V8 Displacement 5.7L-5665 cc 346 CID Bore 99.0 mm 3.898 in Stroke 92.0 mm 3.622 in Compression Ratio 10.1:1 Firing Order 1-8-7-2-6-5-4-3 Spark Plug Type 41-931 Spark Plug Gap 1.524 mm 0.06 in Lubrication System 5.678 Liters 6.0 Quarts Oil Capacity (without Oil Filter Change) 6.0 Quarts 5.7 Liters Oil Capacity (with Oil Filter Change) 6.5 Quarts 6.151 Liters Oil Pressure (Minimum -- Hot) 41.4 kPa at 1,000 engine RPM 6.0 psig at 1,000 engine RPM Oil Pressure (Minimum- Hot) engine RPM 124.11 kPa at 2,000 engine RPM 165.48 kPa at 4,000 engine RPM engine RPM 18.0 psig at 2,000 engine RPM 24.0 psig at 4,000 engine RPM Oil Type Mobil(E) 5W-30 Synthetic or Equivalent Camshaft Camshaft End Play 0.025-0.305 mm 0.001-0.012 in Camshaft Journal Diameter 54.99-55.04 mm 2.164-2.166 in Camshaft Journal Diameter Out-of-Round 0.025 mm 0.001 in Camshaft Lobe Lift (Intake) 7.04 mm 0.277 in Camshaft Lobe Lift (Exhaust) 7.13 mm 0.281 in Camshaft Runout (Measured at the Intermediate Journals) 0.05 mm 0.002 in Connecting Rod Connecting Rod Bearing Bore Diameter 56.505-56.525 mm 2.224-2.225 in Connecting Rod Bearing Bore Out-of-Round (Production) 0.004 mm 0.00015 in Connecting Rod Bearing Bore Out-of-Round (Service Limit) 0.008 mm 0.0003 in Connecting Rod Bearing Clearance (Production) 0.015-0.063 mm 0.0006-0.00248 in Connecting Rod Bearing Clearance (Production) Connecting Rod Bearing Clearance (Service Limit) 0.015-0.076 mm 0.0006-0.003 in Connecting Rod Side Clearance 0.11-0.51 mm 0.00433-0.02 in Crankshaft Crankshaft Bearing Clearance (Production) 0.018-0.054 mm 0.0007-0.00212 in Crankshaft Connecting Rod Journal Diameter (Production) 53.318-53.338 mm 2.0991-2.0999 in Crankshaft Connecting Rod Journal Diameter (Service Limit) 53.308 mm (Minimum) 2.0987 in (Minimum) Crankshaft Connecting Rod Journal Taper (Production) 0.005 mm (Maximum for 1/2 of Journal Length) 0.0002 in (Maximum for 1/2 of Journal Length) Crankshaft Connecting Rod Journal Taper (Service Limit) 0.01 mm (Maximum) 0.0004 in (Maximum) Crankshaft Connecting Rod Journal Out-of-Round (Production) 0.005 mm 0.0002 in Crankshaft Connecting Rod Journal Out-of-Round (Service Limit) 0.01 mm 0.0004 in Crankshaft End Play 0.04-0.2 mm 0.0015-0.0078 in Crankshaft Main Journal Diameter (Production) 64.993-65.007 mm 2.558-2.559 in Crankshaft Main Journal Diameter (Service Limit) 64.993 mm (Minimum) 2.558 in (Minimum) Crankshaft Main Journal Out-of-Round (Production) 0.003 mm 0.000118 in Crankshaft Main Journal Out-of-Round (Service Limit) 0.008 mm 0.0003 in Crankshaft Main Journal Taper (Production) 0.01 mm 0.0004 in Crankshaft Main Journal Taper (Service Limit) 0.02 mm 0.00078 in Crankshaft Reluctor Ring Runout (Measured 1.0 mm (0.04 in) Below Tooth Diameter) 0.25 mm 0.01 in Crankshaft Runout (at Rear Flange) 0.05 mm 0.002 in Crankshaft Thrust Wall Runout 0.025 mm 0.001 in Crankshaft Thrust Wall Width (Production) 26.14-26.22 mm 1.029-1.032 in Crankshaft Thrust Wall Width (Service) 26.32 mm (Maximum) 1.036 in (Maximum) Cylinder Bore Cylinder Bore Diameter 99.0-99.018 mm 3.897-3.898 in Cylinder Bore Taper Thrust Side 0.018 mm (Maximum) 0.0007 in (Maximum) Cylinder Head Cylinder Head Engine Block Deck Flatness (Measured within a 152.4 mm (6.0 in) area) 0.11 mm 0.004 in Cylinder Head Engine Block Deck Flatness (Measuring the Overall Length of the Cylinder Head) 0.22 mm 0.008 in Cylinder Head Exhaust Manifold Deck Flatness 0.22 mm 0.008 in Cylinder Head Intake Manifold Deck Flatness 0.22 mm 0.008 in Cylinder Head Height (Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface) 120.2 mm (Minimum) 4.732 in (Minimum) Engine Block Camshaft Bearing Bore Diameters 55.063-55.088 mm 2.168-2.169 in Engine Block Cylinder Head Deck Surface Flatness (Measured within a 152.4 mm (6.0 in) area) 0.11 mm 0.004 in Engine Block Cylinder Head Deck Surface Flatness (Measuring the Overall Length of the Block Deck) 0.22 mm 0.008 in Engine Block Cylinder Head Deck Height (Measuring from the Centerline of Crankshaft to the Deck Face) 234.57-234.82 mm 9.235-9.245 in Main Bearing Bore Diameter (Production) 69.871-69.889 mm 2.750-2.751 in Valve Lifter Bore Diameter (Production) 21.417-21.443 mm 0.843-0.844 in Intake Manifold Intake Manifold Cylinder Head Deck Flatness (Measured at Gasket Sealing Surfaces) 0.5 mm 0.02 in Oil Pan and Front/Rear Cover Alignment Oil Pan to Rear of Engine Block Alignment (at Transmission Bellhousing Mounting Surface) 0.0-0.25 mm (Maximum) 0.0-0.01 in (Maximum) Front Cover Alignment (at Oil Pan Surface) 0.0-0.5 mm 0.0-0.02 in Rear Cover Alignment (at Oil Pan Surface) 0.0-0.5 mm 0.0-0.02 in Piston Piston Outside Diameter (at Size Point) 98.964-98.982 mm 3.8962-3.8969 in Piston to Bore Clearance (Production) 0.018-0.054 mm 0.0007-0.00212 in Piston to Bore Clearance (Service Limit) 0.018-0.054 mm (Maximum) 0.0007-0.00212 in (Maximum) Piston Pin Piston Pin Clearance to Piston Bore (Production) 0.01-0.02 mm 0.0004-0.00078 in Piston Pin Clearance to Piston Bore (Service Limit) 0.01-0.02 mm (Maximum) 0.0004-0.00078 in (Maximum) Piston Pin Diameter 23.997-24.0 mm 0.9447-0.9448 in Piston Pin Fit in Connecting Rod 0.02-0.043 mm (Interference) 0.00078-0.00169 in (Interference) Piston Rings Piston Compression Ring End Gap (Production Top) (Measured in Cylinder Bore) 0.23-0.38 mm 0.009-0.0149 in Piston Compression Ring End Gap (Production--2nd) (Measured in Cylinder Bore) 0.44-0.64 mm 0.0173-0.0251 in Piston Oil Ring End Gap (Production) (Measured in Cylinder Bore) 0.18-0.69 mm 0.007-0.0271 in Piston Compression Ring End Gap (Service-Top) (Measured in Cylinder Bore) 0.23-0.38 mm (Maximum) 0.009-0.01496 in (Maximum) Piston Compression Ring End Gap (Service--2nd)(Measured in Cylinder Bore) 0.44-0.64 mm (Maximum) 0.0173-0.0251 in (Maximum) Piston Oil Ring End Gap (Service Limit) (Measured in Cylinder Bore) 0.18-0.69 mm (Maximum) 0.007-0.0271 in (Maximum) Piston Compression Ring Groove Clearance (Production--Top) 0.04-0.085 mm 0.00157-0.003346 in Piston Compression Ring Groove Clearance (Production--2nd) 0.04-0.08 mm 0.00157-0.003149 in Piston Oil Ring Groove Clearance (Production) 0.01-0.22 mm 0.0004-0.00866 in Piston Oil Ring Groove Clerance (Production) Piston Compression Ring Groove Clearance (Service--Top) 0.04-0.085 mm (Maximum) 0.00157-0.003346 in (Maximum) Piston Compression Ring Groove Clearance (Service--2nd) 0.04-0.08 mm (Maximum) 0.00157-0.003149 in (Maximum) Piston Oil Ring Groove Clearance (Service Limit) 0.01-0.22 mm (Maximum) 0.0004-0.00866 in (Maximum) Valve System Valve Lifter Hydraulic Roller Valve Rocker Arm Ratio 1.70:1 Valve Lash Net Lash--No Adjustment Valve Face Angle 45 degrees Valve Seat Angle 46 degrees Valve Seat Runout 0.05 mm (Maximum) 0.002 in (Maximum) Valve Seat Width (Intake) 1.02 mm 0.04 in Valve Seat Width (Exhaust) 1.78 mm 0.07 in Valve Stem Clearance (Production--Intake) 0.025-0.066 mm 0.001-0.0026 in Valve Stem Clearance (Production--Intake) 0.025-0.066 mm 0.001-0.0026 in Valve Stem Clearance (Production--Exhaust) 0.025-0.066 mm 0.001-0.0026 in Valve Stem Clearance (Service--Intake) 0.093 mm (Maximum) 0.0037 in (Maximum) Valve Stem Clearance (Service--Exhaust) 0.093 mm (Maximum) 0.0037 in (Maximum) Valve Stem Diameter (Production) 7.955-7.976 mm 0.313-0.314 in Valve Stem Diameter (Service) 7.9 mm (Minimum) 0.311 in (Minimum) Valve Spring Free Length 52.9 mm 2.08 in Valve Spring Pressure (Closed) 340 N at 45.75 mm 76 lb at 1.80 in Valve Spring Pressure (Open) 980 N at 33.55 mm 220 lb at 1.32 in Valve Spring Installed Height (Intake) 45.75 mm 1.8 in Valve Spring Installed Height (Exhaust) 45.75 mm 1.8 in Valve Lift (Intake) 11.99 mm 0.472 in Valve Lift (Exhaust) 12.15 mm 0.479 in Valve Guide Installed Height (Measured from the Cylinder Head Spring Seat Surface to the Top of the Valve Guide) 17.32 mm 0.682 in Valve Stem Oil Seal Installed Height (Measured from the ValveSpring Shim to Top Edge of Seal Body) 18.1-19.1 mm 0.712-0.752 in Approximate Fluid Capacities Cooling System Automatic Transmission 11.6 Liters 12.3 quarts Manual Transmission 11.9 Liters 12.6 quarts Engine Crankcase With Filter 6.1 Liters 6.5 quarts Without Filter 5.7 Liters 6.0 quarts Fuel Tanks (Total) 72.3 Liters 19.1 gallons Rear Axle Differential Lubricant 1.6 Liters 1.69 quarts Limited-Slip Additive 118 Milliliters 4.0 ounces Transmission Fluid Drain & Fill (Automatic Transmission) 4.7 Liters 5.0 quarts Overhaul (Automatic Transmission) 10.2 Liters 10.8 quarts Overhaul (Manual Transmission) 3.9 Liters 4.1 quarts Team ZR-1 True Custom Performance Tuning Teamzr1.com

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