EJCP.PARTS

GM 3.8 SERIES II

Introduced in 1995, the Series II is quite a different engine. Although the stroke for the 3.8 L engine remained at 3.4 in (86 mm), and the bore remained at 3.8 in (97 mm), the engine architecture was vastly changed. The deck height is shorter than the Series I, reducing weight and total engine package size. This required that the piston connecting rods be shortened 1 in (25.4 mm), and the crankshaft was also redesigned. A new intake manifold improved breathing while a redesigned cylinder head featured larger valves and a higher compression ratio. The result was 205 hp (153 kW) and 230 lb·ft (312 N·m), better fuel economy, and 26 lb (12 kg) lighter overall weight (to 392 lb (178 kg)). This 3800 weighs only 22 lb (10.0 kg) more than the all-aluminum High Feature V6 that currently dominates GM's six-cylinder applications, despite being an all cast-iron design. The new intake manifold greatly improved airflow. To meet emissions standards, an EGR tube was placed in the intake manifold to reduce combustion temperatures. The 3800 Series II was on the Ward's 10 Best Engines list for 1995 through 1997. GM recalled 1.5 million vehicles with this engine on April 14, 2009 due to risk of fire from engine oil leaking under the valve cover gaskets onto hot exhaust manifolds. The fire could spread to the nearby plastic spark plug wire retainers on the valve cover and then to the rest of the engine compartment. GM fitted the affected vehicles with redesigned spark plug wire retainers.[4] These engines were noted for having problems with the plastic upper intake manifold cracking around the EGR passage. The engine would then hydrolock. The lower intake gaskets and upper intake manifolds were revised, correcting all these issues.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
3.8 CAST IRON CAST IRON OHV MPFI

ITEMS

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

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
3.8 OHV 95-99 BONNEVILLE EIGHTY EIGHT PARK AVANUE
95-96 NINETY EIGHT
95-97 RIVIERA
97-03 GRAND PRIX
96-99 LESABRE
96-04 REGAL
98-99 INTRIGUE LUMINA
98-05 MONTE CARLO
00-05 IMPALA
3.8A 3.8A ***** ***********
3.8 OHV 95-98 CAMARO FIREBIRD 3.8C 3.8A ***** ***********
3.8 OHV 99-02 CAMARO FIREBIRD 3.8D 3.8A ***** ***********
3.8 OHV 00-04 BONNEVILLE LESABRE PARK AVENUE 3.8B 3.8A ***** ALUMINUM OIL PAN

VALVE INFORMATION

MAKE MODEL YEAR RANGE
BUICK LACROSSE 2005-2009
BUICK LESABRE 1996-2005
BUICK LUCERNE 2006-2008
BUICK PARK AVENUE 1996-2005
BUICK REGAL 1996-2004
BUICK RIVIERA 1996-1999
CHEVROLET CAMARO 1996-2002
CHEVROLET IMPALA 2000-2005
CHEVROLET LUMINA 1998-1999
CHEVROLET MONTE CARLO 1998-2005
OLDSMOBILE 88 1996-1999
OLDSMOBILE 98 1996
OLDSMOBILE INTRIGUE 1998-1999
OLDSMOBILE LSS 1996-1999
OLDSMOBILE REGENCY 1997-1998
PONTIAC BONNEVILLE 1996-2005
PONTIAC FIREBIRD 1996-2002
PONTIAC GRAND PRIX 1997-2008
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 36.6 7.96 119.7 1 *GM38AU
INTAKE 45.7 7.96 119.9 1 *GM38AU

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