PONTIAC
Cyl.
Engine
Bore		 Years
Comp.
Ratio		 NOTES: Part No.
Sizes		 Rings O.E. Assy.
No.		 O.E. Casting
No.		 Head
Shape
L4-097.6
1.6L
3.228(IN)
82(MM)

CHEVY
ENGINE
1979-87

8.6
2.46" dia. head recess .020" deep. Piston is 3" long.

APPROXIMATE HEAD VOLUME=1.75cc

Comp. Ht. 1.474
Pin Dia..9055 Offset
1458
STD.
.5mm
.75mm
1.0mm
1.5mm
2-1.5mm
1-4.0mm
14001187
14001131
L4-112
1.8L
3.504(IN)
89(MM)

CHEVY
ENGINE
1982

8.5
Flat head, 2nd design with 1.5mm top ring.

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
14020567
14033225
L4-121
2.0L
3.385(IN)
86(MM)

PONTIAC
ENGINE
1987-91

8.8
Non-turbo, VIN K, 2.78" dia. head recess .142" deep.

APPROXIMATE HEAD VOLUME=13.5cc

Comp. Ht. 1.171
Pin Dia..8271 Offset
1536
STD.
.5mm
.75mm
1.0mm
2-1.5mm
1-3.0mm

Shallow
Groove
52273299
94656926
L4-121
2.0L
3.385(IN)
86(MM)

PONTIAC
ENGINE
1992-94

9.2
Sunbird, non-turbo, 2.25" dia. offset head recess .185" deep (11cc).

Comp. Ht. 1.171
Pin Dia..8266 Offset
1537**
STD.
.5mm
.75mm
1.0mm
2-1.5mm
1-3.0mm
52269890
068103-1
90354992
L4-121
2.0L
3.504(IN)
89(MM)

CHEVY
ENGINE
1983-84

9.3
Full sets only, car & truck weights differ. 2.25" dia. dish head. Similar to 1477 exc. 2nd ring.

APPROXIMATE HEAD VOLUME=6cc

Comp. Ht. 1.578
Pin Dia..9055 Offset
1468
STD.
.5mm
.75mm
1.0mm
1.5mm
1-1.5mm
1-2.0mm
1-4.75mm
14057958
14046547
L4-121
2.0L
3.504(IN)
89(MM)

CHEVY
ENGINE
1983-84

9.3
Full sets only, car & truck weights differ. 2.25" dia. dish head. Similar to 1468 exc. 2nd ring.

APPROXIMATE HEAD VOLUME=14.5cc

Comp. Ht. 1.578
Pin Dia..9055 Offset
1477
STD.
.5mm
.75mm
1.0mm
1.5mm
2-1.5mm
1-4.75mm
14057958
14046547
L4-121
2.0L
3.504(IN)
89(MM)

CHEVY
ENGINE
1985-86

9.0
2.37" dia. head recess .155" deep. Small pin.

APPROXIMATE HEAD VOLUME=6.5cc

Comp. Ht. 1.578
Pin Dia..8002 Offset
1469
STD.
.5mm
.75mm
1.0mm
1.5mm
2-1.5mm
1-4.75mm

Shallow
Groove
14079572
10103570
14079557
L4-138
2.3L
3.622(IN)
92(MM)

OLDSMOBILE
ENGINE
1987-95

9.4
Hypereutectic, Quad-4 engine, also HO. For SOHC. 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
* NEW PISTON, AVAILABLE NOW
**NEW PISTON, CHECK FOR AVAILABILITY
Page 77

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