GMC Truck (Includes Minivans)

15 3.3L 200 OHV V6 (Chevrolet), 3.5" Bore 1979-78

(cont.) L/D Truck VIN Code "M" 1978-79
QTY VALVE GUIDE YEARS PART NO. DESCRIPTION
6 Guide 79-78 VG-5038 Exh.; .3430" ID, 2.1200" O.A.L.
6 Guide, Bulk 79-78 VG-5038B Exh.; Carton of 50; .3430" ID, 2.1200" O.A.L.
QTY VALVE SEAL YEARS PART NO. DESCRIPTION
12 Valve Stem Seal 79-78 MV-1233C O-Ring; Rubber
12 Valve Stem Seal Bulk 79-78 MV-1233 O-Ring; Carton of 100; Rubber
QTY VALVE, MISC YEARS PART NO. DESCRIPTION
24 Keeper 79-78 VK-115 1 groove; Square cut key groove
24 Keeper 79-78 VK-115R 1 groove; Square cut key groove; Hardened
24 Keeper, Bulk 79-78 VK-115B 1 groove; Square cut key groove; Carton of 1000
6 Rotocap 79-78 RC-157S
QTY PISTON YEARS PART NO. DESCRIPTION
6 Cast Piston 79-78 475NP Std-20-30-40-60 Cast; 2-5/64", 1-3/16" Ring Groove, 1.540" CD, .9272" Pin
Dia., Recessed Head .142" deep x 2.880" dia. - 8.2:1 C.R.
6 Cast Piston - Individual 79-78 W475NP Std-20-30-40-60 Cast; 2-5/64", 1-3/16" Ring Groove, 1.540" CD, .9272" Pin
Dia., Recessed Head .142" deep x 2.880" dia. - 8.2:1 C.R.
QTY RINGS YEARS PART NO. DESCRIPTION
1 Premium Set 79-78 E-197K Std-20-30-40-60 2-5/64, 1-3/16
1 Standard Set 79-78 E-197X Std-20-30-40-60 2-5/64, 1-3/16
6 Premium Single Cylinder Set 79-78 WE-197K Std-20-30-40 2-5/64, 1-3/16
6 Standard Single Cylinder Set 79-78 WE-197X Std-20-30-40-60 2-5/64, 1-3/16
QTY ENGINE BEARINGS YEARS PART NO. DESCRIPTION
B 1 Main Set 79-78 5085M Std-1-10-20-30-40 B
1 Main Set 79-78 6687M10 10-20-30 .020" O/S length flange brg.
L 1 Main Set 79-78 5085MA Std-1-10-20-30-40 A-Series aluminum bearings L
O 1
6
Rod Set
Rod Pair
79-78
79-78
6-3750P Std-10-20-30-40
3750P Std-1-10-20-30-40
O
C 1 Cam Set 79-78 1463M Std-1 Babbitt material; Full round design C
K 1 Cam Set 79-78 1791M Std Only O.E. split type design K
QTY OIL PUMP YEARS PART NO. DESCRIPTION
1 Oil Pump 79-78 224-4143 High Volume, check pan for clearance; 5/8" inlet; Use shaft
w/steel guide
1 Oil Pump 79-78 224-4146 5/8" inlet
1 Inter. Shaft 79-78 224-6146E Has steel shaft guide; Eliminates nylon shaft guide
1 Inter. Shaft 79-78 224-6146 Use w/nylon shaft guide
1 Oil Pump Shaft Guide 79-78 224-43343 Nylon
1 Screen Assy. 79-78 224-1246 5/8" inlet tube
QTY FREEZE PLUGS YEARS PART NO. DESCRIPTION
1 Brass Block Plug Kit 79-78 381-8049
1 Steel Block Plug Kit 79-78 381-9676

16 3.5L 216.5 OHV L6 (Chevrolet), 3.5" Bore 1952-38

L/D Truck
QTY TIMING YEARS PART NO. DESCRIPTION
1 Crank Gear 52-38 221-2537 27 Teeth
1 Cam Gear 52-38 221-2514 Alum.; 54 Teeth
1 Cam Gear 52-38 221-2500 Silent type; 54 Teeth
QTY CAMSHAFT/LIFTER YEARS PART NO. DESCRIPTION
V 1 Camshaft 52-38 CS-338 V
1 Prelube 52-38 55-400 4 oz. bottle; 1.5 oz. packet No. 55-403 also avail.
A A
QTY PUSH ROD YEARS PART NO. DESCRIPTION
L 12 Push Rod 52-40 RP-3019 10.4650" O.A.L. L
V QTY ROCKER PARTS YEARS PART NO. DESCRIPTION V
E 6 Nut
6 Adj. Screw
52-41
52-41
MR-1940
MR-1939
7/16-20 thread
7/16-20 thread
E
QTY VALVE YEARS PART NO. DESCRIPTION
T 6 Exhaust 52-50 V-1888X Std-15 Chrome plated stem; Stellite face; 1.5000" Head Dia.,
.3412" Stem Dia., 4.9230" O.A.L.
T
R 6 Exhaust 52-50 V-1199 Std-3-5-15-30 1.5000" Head Dia., .3415" Stem Dia., 4.9280" O.A.L. R
A 6
6
Exhaust
Exhaust, Bulk
49-41
52-50
V-957 Std Only
V-1199B Std-15
1.4665" Head Dia., .3402" Stem Dia., 4.8760" O.A.L.
Carton of 25; 1.5000" Head Dia., .3415" Stem Dia., 4.9280"
A
I O.A.L. I
N 6 Intake 52-41 V-958 Std Only 1.6410" Head Dia., .3412" Stem Dia., 6.2830" O.A.L.
N
QTY VALVE GUIDE YEARS PART NO. DESCRIPTION
6 Guide 52-41 VG-350 Exh.; .3435" ID, 2.4400" O.A.L.
6 Guide 52-41 VG-473 Int.; .3435" ID, 3.3400" O.A.L.
6 Guide 40-38 VG-509 Exh.; .3435" ID, 2.1880" O.A.L.
6 Guide 40-38 VG-473 Int.; .3435" ID, 3.3400" O.A.L.
(continued on next page)
626
 GMC Truck (Includes Minivans)
3.5L 216.5 OHV L6 (Chevrolet), 3.5" Bore 1952-38 16
L/D Truck (cont.)
QTY VALVE SPRING YEARS PART NO. DESCRIPTION
12 Spring 52-38 VS-424 2.2500" Free Height
QTY VALVE SEAL YEARS PART NO. DESCRIPTION
12 Valve Stem Seal 52-38 ST-2001 Positive type; Installation requires valve guide machining;
Rubber/PTFE
12 Valve Stem Seal 52-38 MV-1233C O-Ring; Rubber
12 Valve Stem Seal Bulk 52-38 MV-1233 O-Ring; Carton of 100; Rubber
12 Valve Stem Seal Bulk 52-38 ST-2001BC Positive type; Installation requires valve guide machining;
Carton of 100; Rubber/PTFE
QTY VALVE, MISC YEARS PART NO. DESCRIPTION
24 Keeper 52-38 VK-115 1 groove; Square cut key groove
24 Keeper 52-38 VK-115R 1 groove; Square cut key groove; Hardened
24 Keeper, Bulk 52-38 VK-115B 1 groove; Square cut key groove; Carton of 1000
12 Spring Insert 52-38 259-200B .030"; Carton of 100
12 Spring Insert 52-38 259-200A .060"; Carton of 100
QTY PISTON YEARS PART NO. DESCRIPTION
12 Pin Bushing 52-44 9559X 2 req’d. per rod
12 Pin Bushing 42-40 9559X 2 req’d. per rod
QTY RINGS YEARS PART NO. DESCRIPTION
1 Standard Set 52-38 E-103X Std-30 2-1/8, 1-3/16
6 Standard Single Cylinder Set 52-38 WE-103X Std Only 2-1/8, 1-3/16
QTY ENGINE BEARINGS YEARS PART NO. DESCRIPTION
B 1 Main Set 52-48 648M Std-10-20-30 Use w/FSM-105S shim set B
L 1
1
Shim Set
Shim Set
52-48
52-44
FSM-105S
FSM-104S
L
O 1 Shim Set 42-40 FSM-104S O
C 6 Rod Pair 52-44 1415SB10 10-20 Insert type rod brg. for 18R rod forgings that have been
converted from babbitted to insert type; Use w/FSM-104S C
K shim set K
6 Rod Pair 42-40 1415SB10 10-20 Insert type rod brg. for 18R rod forgings that have been
converted from babbitted to insert type; Use w/FSM-104S
shim set
1 Cam Set 52-44 1094M Std Only
1 Cam Set 42-40 1094M Std Only
QTY OIL PUMP YEARS PART NO. DESCRIPTION
1 Oil Pump 52-38 224-4140

3.7L 228 OHV L6 (GMC), 3.5625" Bore 1959-39 17

L/D Truck
V QTY TIMING
1 Cam Gear
YEARS
54-39
PART NO.
221-2514
DESCRIPTION
Alum.; 54 Teeth
V
A 1 Cam Gear 54-39 221-2500 Silent type; 54 Teeth A
L QTY VALVE SPRING
12 Spring
YEARS
53-39
PART NO.
VS-424
DESCRIPTION
2.2500" Free Height
L
V QTY VALVE SEAL YEARS PART NO. DESCRIPTION
V
E 12 Valve Stem Seal 53-39 ST-2001 Positive type; Installation requires valve guide machining; E
Rubber/PTFE
12 Valve Stem Seal 53-39 MV-1233C O-Ring; Rubber
T 12 Valve Stem Seal Bulk 53-39 MV-1233 O-Ring; Carton of 100; Rubber T
12 Valve Stem Seal Bulk 53-39 ST-2001BC Positive type; Installation requires valve guide machining;
R Carton of 100; Rubber/PTFE R
A QTY VALVE, MISC YEARS PART NO. DESCRIPTION A
I 24
24
Keeper
Keeper
53-39
53-39
VK-115
VK-115R
1 groove; Square cut key groove
1 groove; Square cut key groove; Hardened
I
N 24 Keeper, Bulk 53-39 VK-115B 1 groove; Square cut key groove; Carton of 1000 N
QTY PISTON YEARS PART NO. DESCRIPTION
6 Pin Bushing 51-39 9849 Full round design
B 6 Pin Bushing 51-39 9849V Split type bushing B
L QTY RINGS YEARS PART NO. DESCRIPTION L
1 Standard Set 59-55 677X Std Only 1-3/32, 2-1/8, 1-3/16
O 1 Standard Set 53-39 677X Std Only 1-3/32, 2-1/8, 1-3/16 O
C QTY ENGINE BEARINGS YEARS PART NO. DESCRIPTION C
K 1
6
Main Set
Rod Pair
51-39
51-39
697M Std-10-20
9845CP Std-10-20-30
K
1 Cam Set 51-39 1094M Std Only

627
 GMC Truck (Includes Minivans)
18 3.8L 229 OHV V6 (Chevrolet), 3.736" Bore 1984-80
L/D Truck VIN Codes "K" 1980-82, "9" 1983-84
QTY TIMING YEARS PART NO. DESCRIPTION
1 3 Piece Set 84-80 KT3-499S w/.405" tooth width sprocket; Incl. (1) 222-499, (1) 223-390,
(1) 223-391
1 Timing Set w/Gaskets 84-80 CTS-1000 w/.405" tooth width sprocket
1 Timing Chain 84-80 222-499 Use w/.405" tooth width sprocket; 46 Links
1 Crank Sprocket 84-80 223-391 Powdered metal; .405" tooth width sprocket; 18 Teeth
1 Cam Sprocket 84-80 223-390 .405" tooth width sprocket; 36 Teeth
1 Cam Sprocket 84-80 223-390N Nylon; .405" tooth width sprocket; 36 Teeth
QTY CAMSHAFT/LIFTER YEARS PART NO. DESCRIPTION
1 Camshaft 83-80 CS-712
12 Lifter 84-80 HT-817 Std Only Hyd.
12 Lifter, Bulk 84-80 HT-817B Std Only Hyd.; Carton of 128
1 Prelube 83-80 55-400 4 oz. bottle; 1.5 oz. packet No. 55-403 also avail.
QTY CAM KIT YEARS PART NO. DESCRIPTION
1 Cam/Lifter Kit 83-80 KC-712 Hyd.; Incl. (1) CS-712, (12) HT-817, (1) 55-403B
1 Cam/Lifter/Timing Kit 83-80 KCT-712 Hyd.; w/.405" tooth width sprocket; Incl. (1) CS-712, (12)
HT-817, (1) KT3-499S, (1) 55-403B
QTY PUSH ROD YEARS PART NO. DESCRIPTION
12 Push Rod 81-80 RP-3212R Chrome-Moly; 7.7900" O.A.L.
V 12
12
Push Rod
Push Rod
81-80
81-80
RP-3212R100
RP-3212R150
Chrome-Moly; 7.8900" O.A.L.
Chrome-Moly; 7.9400" O.A.L.
V
A 12 Push Rod 81-80 RP-3212R200 Chrome-Moly; 7.9900" O.A.L. A
L 12
12
Push Rod
Push Rod, Bulk
81-80
81-80
RP-3093
BRP-3093
7.7940" O.A.L.
Carton of 100; 7.7940" O.A.L.
L
V 12 Push Rod, Bulk 81-80 BRP-3212R Chrome-Moly; Carton of 100; 7.7900" O.A.L. V
12 Push Rod, Bulk 81-80 BRP-3212R100 Chrome-Moly; Carton of 100; 7.8900" O.A.L.
E E
QTY ROCKER PARTS YEARS PART NO. DESCRIPTION
12 Arm Assy. 81-80 R-826 Incl. arm, ball & nut
T 12
12
Arm Assy., Bulk
Arm
81-80
81-80
R-826B
R-826A
Incl. arm, ball & nut; Carton of 64 T
R 12 Nut 81-80 MR-1751 Self-locking, 3/8" x 24 threads R
A 12
12
Stud
Stud
81-80
81-80
MR-1752
MR-1949
.003" O/S, 3/8" x 24 x 2.495"
3/8" x 24 x 2.495"
A
I QTY VALVE YEARS PART NO. DESCRIPTION I
N 6 Exhaust 81-80 V-1904 Std-3-15-30 Chrome plated stem; 1.5000" Head Dia., .3414" Stem Dia.,
4.9280" O.A.L.
N
6 Exhaust, Bulk 81-80 V-1904B Std-15 Chrome plated stem; Carton of 25; 1.5000" Head Dia.,
.3414" Stem Dia., 4.9280" O.A.L.
QTY VALVE GUIDE YEARS PART NO. DESCRIPTION
6 Guide 81-80 VG-5005 Exh.; .3430" ID, 2.2500" O.A.L.
6 Guide 81-80 VG-5005H Exh.; Hardened; .3430" ID, 2.2500" O.A.L.
6 Guide 81-80 VG-5005T Exh.; Threaded; .3425" ID, 2.2500" O.A.L.
6 Guide 81-80 VG-5038 Int.; .3430" ID, 2.1200" O.A.L.
6 Guide, Bulk 81-80 VG-5005B Exh.; Carton of 50; .3430" ID, 2.2500" O.A.L.
6 Guide, Bulk 81-80 VG-5005TB Exh.; Threaded; Carton of 50; .3425" ID, 2.2500" O.A.L.
6 Guide, Bulk 81-80 VG-5038B Int.; Carton of 50; .3430" ID, 2.1200" O.A.L.
QTY VALVE SEAL YEARS PART NO. DESCRIPTION
12 Valve Stem Seal 81-80 MV-1233C O-Ring; Rubber
12 Valve Stem Seal Bulk 81-80 MV-1233 O-Ring; Carton of 100; Rubber
QTY VALVE, MISC YEARS PART NO. DESCRIPTION
24 Keeper 81-80 VK-115 1 groove; Square cut key groove
24 Keeper 81-80 VK-115R 1 groove; Square cut key groove; Hardened
24 Keeper, Bulk 81-80 VK-115B 1 groove; Square cut key groove; Carton of 1000
6 Rotocap 81-80 RC-157S
QTY PISTON YEARS PART NO. DESCRIPTION
6 Cast Piston 84-80 698P30 30-40-60 Cast; 2-5/64", 1-3/16" Ring Groove, 1.540" CD, .9275" Pin
Dia., Recessed Head .110" deep x 3.115" dia. - 8.5:1 C.R.
6 Cast Piston - Individual 84-80 W698P30 30-40-60 Cast; 2-5/64", 1-3/16" Ring Groove, 1.540" CD, .9275" Pin
Dia., Recessed Head .110" deep x 3.115" dia. - 8.5:1 C.R.
B B
QTY RINGS YEARS PART NO. DESCRIPTION
L 1 Premium Set 84-80 E-414K Std-30-40 2-5/64, 1-3/16 L
O 1
6
Standard Set
Premium Single Cylinder Set
84-80
84-80
E-414X Std-30-40-60
WE-414K Std-30-40
2-5/64, 1-3/16
2-5/64, 1-3/16
O
C 6 Standard Single Cylinder Set 84-80 WE-414X Std-30-40 2-5/64, 1-3/16 C
K QTY ENGINE BEARINGS YEARS PART NO. DESCRIPTION K
1 Main Set 84-80 5085M Std-1-10-20-30-40
1 Main Set 84-80 6687M10 10-20-30 .020" O/S length flange brg.
1 Main Set 84-80 5085MA Std-1-10-20-30-40 A-Series aluminum bearings
1 Rod Set 84-80 6-3750P Std-10-20-30-40
(continued on next page)
628