EJCP.PARTS

SATURN 1.9

The powerplant used in Saturn S-series automobiles was a straight-4 aluminum piston engine produced by Saturn, a subsidiary of General Motors. The engine was only used in the Saturn S-series line of vehicles (SL, SC, SW) from 1991 through 2002. It was available in chain-driven SOHC or DOHC variants. This was an innovative engine for the time using the lost foam casting process for the engine block and cylinder head. Saturn was one of the first to use this casting process in a full-scale high-production environment. Both engine types used the same engine block.[WIKI]

ITEMS

BRACKETS EXHAUST MANIFOLD INTAKE MANIFOLD OIL PAN PISTON
SENSORS TIMING COVER THROTTLE BODY VALVE COVER VALVE INFORMATION

SATURN 1.9 SOHC TBI LKO

The SOHC (LK0/L24) cylinder head had 8 valves and was made of lost foam cast aluminum. The camshaft was located in the center of the cylinder head and driven by a chain off the front crankshaft sprocket. Motion from the camshaft was transmitted to the eight valves by the hydraulic lifters and rocker arms. The LK0 engine first used TBI (Throttle Body Injection) for fuel delivery and was rated at 85 hp (63 kW) at 5000 RPM and 107 lb·ft (145 N·m) at 2400 RPM from 1991 to 1994[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
1.9 ALUMINUM ALUMINUM SOHC TBI

LISTING TEMPLATES

SIZES COMPATABILITY NOTES
1.9 SOHC 91 SL SL1 ***********
1.9 SOHC 92 SL SL1 ***********
1.9 SOHC 93-94 SC1 SL SL1 SW1 ***********

SATURN 1.9 SOHC MPFI L24

The L24 engine received MPFI (Multi-Port Fuel Injection) in 1995 which increased power output to 100 hp (75 kW) at 5000 RPM and 115 lb·ft (156 N·m) at 2400 RPM. In 1999, these engines switched from the recessed top pistons of the previous models to all new flat top pistons that were also used in the twin cam models. The cylinder head was also redesigned to keep the compression ratio at 8.8:1 even with the flat top pistons and now featured provisions for an air injection reaction system. This engine was used from 1995 to 2002[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
1.9 ALUMINUM ALUMINUM SOHC MPFI

LISTING TEMPLATES

SIZES COMPATABILITY NOTES
1.9 SOHC 95 SC1 SL1 SL SW1 ***********
1.9 SOHC 96-97 SC1 SL SL1 SW1 ***********
1.9 SOHC 98 SC1 SL SL1 SW1 ***********
1.9 SOHC 99 SC1 SL SL1 SW1 ***********
1.9 SOHC 00-02 SC1 SL SL1 ***********

SATURN 1.9 DOHC MPFI LLO

The DOHC cylinder head had 16 valves and was made of lost foam cast aluminium. The camshafts were held in the cylinder head with bearing caps and driven by a chain off the front crankshaft sprocket. Motion from the camshafts was transmitted to the 16 valves by direct-acting hydraulic lifters. LL0 cylinder heads were changed slightly in 1995, when Saturn adopted electronic, linear EGR mechanisms, over the previous vacuum actuated design. The head casting was changed to accommodate different mounting surface of the new valve. All LL0 engines used MPFI and were rated at 124 hp (92 kW) at 5600 RPM and 122 lb·ft (165 N·m) at 4800 RPM.[3] The DOHC engine was available on the upper-level model S-series vehicles (SC, SC2, SL2, SW2). A revision of the LL0 appeared in 1999 and used a roller camshaft with hydraulic lifters and rocker arms, but power was unchanged. Also for 1999 provisions for a new air injection reaction system was introduced aimed at improving engine emissions.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
1.9 ALUMINUM ALUMINUM DOHC MPFI

LISTING TEMPLATES

SIZES COMPATABILITY NOTES
1.9 DOHC 91 SC SL2 ***********
1.9 DOHC 92 SC SL2 ***********
1.9 DOHC 93 SC2 SL2 SW2 ***********
1.9 DOHC 94 SC2 SL2 SW2 VACUUM EGR SYSTEM
CALI EMMISIONS
1.9 DOHC 94 SC2 SL2 SW2 FED EMMISIONS
1.9 DOHC 95 SC2 SL2 SW2 ***********
1.9 DOHC 96-97 SC2 SL2 SW2 ***********
1.9 DOHC 98 SC2 SL2 SW2 ***********
1.9 DOHC 99 SC2 SL2 SW2 ROCKER ARM HEAD
1.9 DOHC 00-02 SC2 SL2
00-01 SW2
ROCKER ARM HEAD

VALVE INFORMATION
SOHC

MAKE MODEL YEAR RANGE
SATURN S-SERIES 1991-1998
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 27.4 6.9 100.8 1 *GM19AU
INTAKE 32.3 7 101.6 1 *GM19AU

VALVE INFORMATION
SOHC

MAKE MODEL YEAR RANGE
SATURN S-SERIES 1991-2002
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 33.9 6.9 138.9 1 *GM19AU
INTAKE 40 7 138.9 1 *GM19AU

VALVE INFORMATION
DOHC TAPPET STYLE

MAKE MODEL YEAR RANGE
SATURN S-SERIES 1991-1998
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 27.4 6.9 100.8 1 *GM19BU
INTAKE 32.3 7 101.6 1 *GM19BU

VALVE INFORMATION
DOHC ROCKER STYLE

MAKE MODEL YEAR RANGE
SATURN S-SERIES 1991-1998
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 27.4 6.9 95.7 1 *GM19CU
INTAKE 32.3 6 96.2 1 *GM19CU

BRACKETS

EXHAUST MANIFOLD

91-94 SOHC

91-92 DOHC

93-94 DOHC

95-99 SOHC
FED EMISSION

95 DOHC
96-98 DOHC
INTEGRAL CAT

96-98 DOHC
INTEGRAL CAT

98-99 SOHC
INTEGRAL cAT

99-01 DOHC
INTEGRAL CAT

99-00 DOHC
FED EMISSION

00 SOHC
FED EMISSION

00-01 SOHC
CALI EMISSION
INTEGRAL CAT

01-02 SOHC

01-02 DOHC

INTAKE MANIFOLD

91-94 SOHC

91-94 DOHC

95-99 SOHC

95 DOHC

96-99 DOHC

00-02 SOHC

00-02 DOHC

OIL PAN

91-02 ALL

SENSORS

CRANK SENSOR
91-02 ALL

00-02 KNOCK SENSOR DOHC

00-02 KNOCK SENSOR SOHC

96-99 KNOCK SENSOR

91-95 KNOCK SENSOR

TIMING COVER

91 SOHC

91 DOHC

92-02 SOHC

92-98 DOHC

99-02 DOHC

THROTTLE BODY

91-94 SOHC

91-94 DOHC
95 ALL

96-97 ALL

98-99 ALL

00-02 SOHC

00-02 DOHC

PISTON

VALVE COVER