Selected page of GM Goodwrench Engines Catalog
COMPONENT PARTS SPECIFICATIONS
Section II Page 3
August 2004
GOODWRENCH REMANUFACTURED ENGINES
This is a generic summary of the type of parts found in Goodwrench remanufactured engines. Each engine family is different
from other engine families, and remanufacturing specifications can be unique to a specific engine part number.
New Components are those that are always installed new (OE designed) during the remanufacturing process.
Qualified Components are those used parts that are reclaimed by cleaning and checking to OE specifications.
Remanufactured Components are those used parts that are reclaimed by machining to specifications established by
GMSPO Engineering with the consultation and direction of General Motors Powertrain (GMPT) Engineering. Changes to
OE specifications are typically validated by dynomometer durability testing. All GMSPO remanufactured parts are shipped
clean and ready for installation unless otherwise noted in the installation instructions.
| GENERAL ENGINE DIAGNOSTICS
Section IV Page 18
August 2004
DIAGNOSING AN ENGINE FAILURE
Preliminary Checks
Several preliminary checks are recommended when a customer arrives with a serious engine operating concern:
1. Understand the specific customer concern and the problem symptoms.
2. Verify the concern under the same conditions that it occurred.
3. Perform a visual/physical inspection for the following symptoms or signs of engine failure causes: Serious oil or coolant leaks which may indicate engine block cracks or cylinder head gasket failure. Engine noises that may indicate internal engine problems other than timing or fuel system defects. Overheating caused by inadequate cooling from a plugged radiator, stuck thermostat or collapsed coolant hoses. Excessive wear caused by a lack of lubrication from using an incorrect oil, inadequate oil changes, a too-low oil
level, or a plugged filter, PCV valve or EGR valve. Incorrect timing causing overheating or performance p
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 32
August 2004
12465411
133 CID Reman
2.2L
1994-95
Chevrolet, GMC
S1 (LN2)(2.2-4)
1994-95
GMC
Z1 (LN2)(2.2-4)
Engine-Specific Content: Front Cover, Oil Pan, and Oil Filter
Notes: Does not contain Flywheel, Crankcase Vent Sys, Thermostat, Intake or Exhaust Manifold, Crankshaft Posn, Knock,
Map, Cool Temp or Oil Level Sensors.
Replaces: 12363159, 12363198
Replaced By:
INSTALLATION INSTRUCTIONS
No special installation instructions are necessary. Please refer to the general installation procedure section of this book.
12465434
134 CID Reman
2.2L
1996
Chevrolet, GMC
S1 (03-53)(LN2)(2.2-4)
Engine-Specific Content: Front Cover and Oil Pan
Notes: Does not contain Flywheel, Crankcase Vent Sys, Thermostat, Intake or Exhaust Manifold, Crankshaft Posn, Knock,
Map, Cool Temp or Oil Level Sensors.
Replaces: 12360470, 12363199
Replaced By:
INSTALLATION INSTRUCTIONS
No special installati
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 46
August 2004
12351907
151 CID Reman
2.5L
1982-83
Chevrolet, Pontiac
A, X (LR8)(2.5R)
Oldsmobile, Buick
Engine-Specific Content: Front Cover and Oil Pan
INSTALLATION INSTRUCTIONS
The Goodwrench 2.5 engine has been remanufactured subsequent to the model year of the vehicle and may incorporate
design refinements not included in original service information (i.e., 1982 engines may incorporate design features normally
associated with 1987 models). If future service is required for this engine, consult GM Parts catalogs, GM Parts and
Accessories information bulletins and dealer service bulletins for proper service parts and service procedures necessary to
accommodate these revisions.
Before installing this engine, refer to the appropriate vehicle service chassis manual for proper repair procedures and owner's
manual for capacities. Initially add 3 quarts of Starburst certified oil in viscosity suitabl
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 60
August 2004
12351924
151 CID Reman
2.5L
1989
Chevrolet, Pontiac,
A (LR8)(2.5R)
Oldsmobile, Buick
Engine-Specific Content: Front Cover and Oil Pan
INSTALLATION INSTRUCTIONS
The Goodwrench 2.5 engine has been remanufactured subsequent to the model year of the vehicle and may incorporate
design refinements not included in original service information (i.e., 1982 engines may incorporate design features normally
associated with 1987 models). If future service is required for this engine, consult GM Parts catalogs, GM Parts and
Accessories information bulletins and dealer service bulletins for proper service parts and service procedures necessary to
accommodate these revisions.
Before installing this engine, refer to the appropriate vehicle service chassis manual for proper repair procedures and owner's
manual for capacities. Initially add 3 quarts of Starburst certified oil in viscosity suitable to
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 74
August 2004
12537812
207 CID New
3.4L
1991-93
Chevrolet, Pontiac
W (LQ1) M27
1991-92
Oldsmobile
W (LQ1) M27
Engine-Specific Content: Crankshaft Balancer, Flywheel Assembly, Oil Pan, Oil Level Indicator and Tube, Front Cover,
Timing Belt System, Camshaft with Hsg. and Cover, Crank and Cam Posn. Sensors, and Lower Intake Manifold
Replaces: 24503079
Replaced By:
INSTALLATION INSTRUCTIONS
No special installation instructions are necessary. Please refer to the general installation procedure section of this book.
88894033
207 CID New
3.4L
2000
Pontiac
N, U (LA1) NF2
2000
Chevrolet
W (LA1) NF2
2000
Chevrolet, Oldsmobile
U (LA1) NF2
2000
Oldsmobile
N (LA1) NA7, NF2
2001-02
Pontiac
B, N, U (LA1) NF7
2001-02
Chevrolet
U, W (LA1) NF7, NF4
2001-02
Oldsmobile
U (LA1) NF7
2002
Buick
B (LA1) NF7
Engine-Specific Content: Front Cover, Oil Pan, and Valve Cove
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 89
August 2004
12361243
262 CID Reman
4.3L
1987-90
Chevrolet
B (LB4)(4.3Z)
1987-88
Chevrolet
G (LB4)(4.3Z)
1987
Pontiac
G (LB4)(4.3Z)
1987
Chevrolet, GMC
CK1, R1,2, V1, RV1 (LB4)(4.3Z)
1987-89
Chevrolet, GMC
M1 (LB4)
1988
Chevrolet, GMC
CK1,2,3, V2 (LB4)(4.3Z)
1988-91
Chevrolet, GMC
ST1 (LB4)(4.3Z)
1989-91
Chevrolet, GMC
CK1,2 (LB4)(4.3Z) Exc. Emis. above 8500lb. GVW (NA4)
1987-90
Chevrolet, GMC
G1,2,3 (LB4)(4.3Z)
1990
Chevrolet, GMC
LM1 (LB4)(4.3Z)
1991
Chevrolet, GMC
G1,2,3 (LB4)(4.3Z) Exc. Emis. above 8500lb. GVW (NA4)
Engine-Specific Content: Oil Pump
Notes: Includes 21-PSI Oil Pressure Bypass Valve.
INSTALLATION INSTRUCTIONS
Instruct customer that the first service interval including an oil and filter change should be between 300 and 500 miles. Replacement of oil related parts: If the original engine failed either catastrophically or due to bear
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 103
August 2004
Straight 6 In-Line
Engine Family
Gasoline
APPLICATION, CONTENT
INSTALLATION PROCEDURES
This is a guide only. For specific questions, information and applications regarding
any engine, please refer to the appropriate electronic GM Parts Catalog or contact
PARTECH at 1-800-433-6961.
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 117
August 2004
12520270
350 CID New
5.7L
1987-94
Chevrolet, GMC
G3 (L05)(5.7K) Emis. Sys (above 8500lb. GVW) NA4
1987-90
Chevrolet, GMC
P2,3 (L05)(5.7K) Emis. Sys (above 8500lb. GVW) NA4
1987-91
Chevrolet, GMC
RV2,3 (L05)(5.7K) Emis. Sys (above 8500lb. GVW) NA4
1988-95
Chevrolet, GMC
CK2,3 (L05)(5.7K) Emis. Sys (above 8500lb. GVW) NA4
1991-96
Chevrolet, GMC
P3 (L05)(5.7K)
1994-96
Chevrolet, GMC
G3 (L05)(5.7K) MT1 (exc. KL5, 5Z1, 9C2, NM8)
1994-96
Chevrolet, GMC
G3 (L05)(5.7K) NM8, MT1 (exc. 9C2)
1994-96
Chevrolet, GMC
G3 (L05)(5.7K) 5Z1 (exc. 9C2, NM8)
1995
Chevrolet, GMC
G3 (L05)(5.7K) MT1, 9C2, 5Z1 (exc. NM8)
Engine-Specific Content: Front Cover, Oil Pan, Torsional Damper, and Valve Rocker Cover
Replaces: 12509657
Replaced By:
INSTALLATION INSTRUCTIONS Part number 12520270 5.7 Goodwrench 5.7 Liter engine is built with 1993 model year designed oil pan (no rail
| GOODWRENCH SERVICE REPLACEMENT ENGINES
Section V Page 131
August 2004
12339193
454 CID Reman
7.4L
1980-86
Chevrolet, GMC
C2 CK3 (LE8)(7.4W)
1987-90
Chevrolet, GMC
R2,3 (L19)(7.4N)
1987-89
Chevrolet, GMC
RV2,3 (LE8)(7.4W)
1987-88
Chevrolet, GMC
V3 (L19)(7.4N)
1988-90
Chevrolet, GMC
CK3 G3 (L19)(7.4N)
1990
Chevrolet, GMC
C1 (L19)(7.4N)
Notes: Domestic 2 or 4 bolt main, unleaded fuel only. On all 76 models and 77-85 P3 (42) models, a new shallow oil
pump, p/n 14067529, must be installed
Replaces: 14105965
Replaced By:
INSTALLATION INSTRUCTIONS
No special installation instructions are necessary. Please refer to the general installation procedure section of this book.
12339194
454 CID Reman
Leaded Fuel Only
7.4L
1974-80
Chevrolet, GMC
C2,3 (454S) NM8
1980-86
Chevrolet, GMC
C2 CK3 (LE8)(454W) NM8
1987-90
Chevrolet, GMC
R2,3 (L19)(7.4N) NM8
1987-89
Chevrolet, GMC
RV2,3 (LE8)(454W) NM8
1988-90
Chevrol
| COMMENTS FEEDBACK
Section VII Page 145
August 2004
We welcome your comments and feedback about this guide.
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2004 Goodwrench Engine Reference Guide
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