PONTIAC
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
1987-94

9.5
Quad-4 engine includes HO, Hypereutectic 2.66" dia. head recess. 160" deep with 4 valve reliefs. For DOHC applications.

Comp. Ht. 1.250
Pin Dia..8665 Offset
H1642**
STD.
.25mm
0.5mm
.75mm
1.0mm
2-1.5mm
1-3.0mm
24573576
22545567
L4-151
2.3L
4.000(IN)
101.6(MM)

PONTIAC
ENGINE
1977-78

8.1
Flat Head.

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

PONTIAC
ENGINE
1977-78

8.2
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
4.000(IN)
101.6(MM)

PONTIAC
ENGINE
1979-90

8.3
Hypereutectic, destroked .020". 3.02" dia. head recess .246" deep. Full sets only. Not intended for racing.

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
10032144
10010065
L4-151
2.5L
4.000(IN)
101.6(MM)

PONTIAC
ENGINE
1980-93

9.0
8.3
Hypereutectic, destroked .020" 3.10" dia. head recess .140" deep. Full sets only. Not intended for racing.

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
10101488
10044245
10112445
10112444
10042191
10101488
10044257
10044214
10043025
10042076
10044257
L4-151
2.5L
4.000(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
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 and 2.8Z engine.

Comp. Ht. 1.578
Pin Dia..9055 Offset
1463
STD.
0.5mm
.75mm
1.0mm
1.5mm
1-1.5mm
1-2.0mm
1-4.75mm
14033250
14003994
14020567
14033129
14033225
476532
14020518
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 and 2.8Z engine.

Comp. Ht. 1.578
Pin Dia..9055 Offset
1463C
STD.
0.5mm
.75mm
1.0mm
1.5mm
1-1.5mm
1-2.0mm
1-4.75mm
14033250
14003994
14020567
14033129
14033225
476532
14020518
14031340
V6-173
2.8L
3.504(IN)
89(MM)

CHEVY
ENGINE
1981-91

8.5
Flat Head, similar to 1463 except ring pack; may be used in 1463 applications but will not be destroked.

Comp. Ht. 1.599
Pin Dia..9055 Offset
1478
STD.
0.5mm
.75mm
1.0mm
1.5mm
1-1.5mm
1-2.0mm
1-4.75mm

Shallow
Groove
14092910
14091814
14077852
* NEW PISTON, AVAILABLE NOW
**NEW PISTON, CHECK FOR AVAILABILITY
Page 78

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