OLDSMOBILE
Cyl.
Engine
Bore		 Years
Comp.
Ratio		 NOTES: Part No.
Sizes		 Rings O.E. Assy.
No.		 O.E. Casting
No.		 Head
Shape
L4-138
2.3L
3.622(IN)
92(MM)

OLDSMOBILE
ENGINE
1988-95

9.4
Hypereutectic, Quad-4 engine including HO. Destroked .020". 2.66" dia. head recess .150" deep with two valve reliefs.

APPROXIMATE HEAD VOLUME=8.5cc

Comp. Ht. 1.240
Pin Dia. .8665 Offset
H1640
STD.
.25mm
.5mm
.75mm
1.0mm
2-1.5mm
1-3.0mm
22539861
22548435
22548436
22548437
22538658
31125565
22545565
L4-138
2.3L
3.622(IN)
92(MM)

OLDSMOBILE
ENGINE
1988-94

9.5
Hypereutectic, Quad-4 engine, including HO, Achieva. 2.66" dia. head recess .160" deep with four valve reliefs.

Comp. Ht. 1.250
Pin Dia. .8665 Offset
H1642
STD.
.25mm
.5mm
.75mm
1.0mm
2-1.5mm
1-3.0mm
24573576
22545567
L4-151
2.5L
4.00(IN)
101.6(MM)

PONTIAC
ENGINE
1978-79

8.2
All 151 engines in 1978. All VIN 1 w/Calif. in 1979.

Comp. Ht. 1.570
Pin Dia. .9273 Offset
1527
STD.
.020
.030
.040
.060
2-5/64
1-3/16
547147
10005635
500492
10006762
L4-151
2.5L
4.00(IN)
101.6(MM)

PONTIAC
ENGINE
1979-85

8.2
Citation, 3.02" dia. head recess .226" deep. Replace in full sets only.

APPROXIMATE HEAD VOLUME=21.5cc

Comp. Ht. 1.570
Pin Dia. .9273 Offset
1528
STD.
.020
.030
.040
.060
2-5/64
1-3/16
10010398
10010404
10017714
10020963
10021844
10024243
10027416
10027317
10032144
10010065
10012045
10016666
10021777
10027200
10032902
L4-151
2.5L
4.00(IN)
101.6(MM)

PONTIAC
ENGINE
1979-85

8.3
Citation, Hypereutectic, destroked .020". 3.02" dia. head recess .246" deep. Replace in full sets only. Not intended for race applications.

APPROXIMATE HEAD VOLUME=23.5cc

Comp. Ht. 1.570
Pin Dia. .9273 Offset
H1534
STD.
.020
.030
.040
.060
2-5/64
1-3/16
10010398
10010404
10017714
10020963
10021844
10024243
10027416
10027317
10032144
10010065
10012045
10016666
10021777
10027200
10032902
L4-151
2.5L
4.00(IN)
101.6(MM)

PONTIAC
ENGINE
1982-86

9.0
3.07" dia. head recess .226" deep. Full sets only. Similar to 1528 except shallow groove and low tension rings.

APPROXIMATE HEAD VOLUME=22.5cc

Comp. Ht. 1.570
Pin Dia. .9273 Offset
1532
STD.
.020
.030
.040
.060
1-1/16
1-5/64
1-3/16

Shallow
Groove
10027317
10027200
L4-151
2.5L
4.00(IN)
101.6(MM)

PONTIAC
ENGINE
1984-93

9.0
8.3
Hypereutectic, destroked .020". 3.10" dia. head recess .160" deep. Full sets only. Not intended for race applications.

APPROXIMATE HEAD VOLUME=15cc

Comp. Ht. 1.566
Pin Dia. .9273 Offset
H1533
STD.
.020
.030
.040
.060
1-1/16
1-5/64
1-3/16

Shallow
Groove
10042188
10044245
10112445
10112444
10042191
10101488
10042076
10044214
10043025
10142076
10044257
V6-173
2.8L
3.504(IN)
89(MM)

CHEVY
ENGINE
1980-88

8.5
Flat head. 2nd design with 1.5mm top ring. High Performance LH7, 2.8Z engine.

Comp. Ht. 1.578
Pin Dia. .9055 Offset
1463
STD.
.5mm
.75mm
1.0mm
1.5mm
1-1.5mm
1-2.0mm
1-4.75mm
14003994
14020567
14033250
14033129
476532
14020518
14033225
14031340
V6-173
2.8L
3.504(IN)
89(MM)

CHEVY
ENGINE
1980-88

8.5
Coated skirts, Flat head. 2nd design with 1.5mm top ring. High Performance LH7, 2.8Z engine.

Comp. Ht. 1.578
Pin Dia. .9055 Offset
1463C
STD.
.5mm
.75mm
1.0mm
1.5mm
1-1.5mm
1-2.0mm
1-4.75mm
14003994
14020567
14033250
14033129
476532
14020518
14033225
14031340
* NEW PISTON, AVAILABLE NOW
**NEW PISTON, CHECK FOR AVAILABILITY
Page 72

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