PONTIAC
Cyl.
Engine
Bore		 Years
Comp.
Ratio		 NOTES: Part No.
Sizes		 Rings O.E. Assy.
No.		 O.E. Casting
No.		 Head
Shape
V6-262
4.3L
4.057(IN)
103(MM)

OLDSMOBILE
ENGINE
1982-85

21.6
Diesel, two large valve reliefs. LT7 with fire slot. SOLD IN FULL SETS ONLY.

APPROXIMATE HEAD VOLUME=5cc

Comp. Ht. 1.770
Pin Dia.1.095 Offset
1637DLR
STD.
.020
.030
.040
2-5/64
1-3/16

Iron Top
Groove
25506674
22511940
558386
22520325
V8-267
4.4L
3.500(IN)
88.9(MM)

CHEVY
ENGINE
1979-82

8.3
2.875" diameter head recess .125" deep.

APPROXIMATE HEAD VOLUME=13cc

Comp. Ht. 1.540
Pin Dia..9273 Offset
1456
STD.
.020
.030
.040
.060
2-5/64
1-3/16
462636
461355
V8-301
4.9L
4.000(IN)
101.6(MM)

PONTIAC
ENGINE
1977-81

8.0
Flat head.

Comp. Ht. 1.570
Pin Dia..9273 Offset
1527
STD.
.020
.030
.040
.060
2-5/64
1-3/16
547147
100005635
10010447
500492
10006762
V8-301
4.9L
4.000(IN)
101.6(MM)

PONTIAC
ENGINE
1980-81

7.5
LU8 engine, turbo. Singles from the Factory only.

APPROXIMATE HEAD VOLUME=13.5cc

Comp. Ht. 1.570
Pin Dia..9273 Offset
1531LR
STD.
.020
.030
.040
.060
2-5/64
1-3/16

Shallow
Groove
10013653(R)
10013659(L)
10013632
10013640
V8-305
5.0L
3.736(IN)
94.9(MM)

CHEVY
ENGINE
1977-86

8.4
3.06" diameter head recess .09" deep.

APPROXIMATE HEAD VOLUME=12.5cc

Comp. Ht. 1.540
Pin Dia..9273 Offset
1449
STD.
.020
.030
.040
.060
2-5/64
1-3/16
364702
14019883
361988
14006722
V8-305
5.0L
3.736(IN)
94.9(MM)

CHEVY
ENGINE
1982-86

8.6
9.5
LU7 engine, TBI. Flat head with four valve reliefs.

APPROXIMATE HEAD VOLUME=4.5cc

Comp. Ht. 1.540
Pin Dia..9273 Offset
1466
STD.
.020
.030
.040
.060
2-5/64
1-3/16
14044649
14081291
14028988
V8-305
5.0L
3.736(IN)
94.9(MM)

CHEVY
ENGINE
1982-86

9.5
Hypereutectic, destroked .020". Flat head with four valve reliefs. NOT INTENDED FOR RACING APPLICATIONS.

APPROXIMATE HEAD VOLUME=6cc

Comp. Ht. 1.540
Pin Dia..9273 Offset
H1482
STD.
.020
.030
.040
.060
2-5/64
1-3/16
14044649
14081291
14028988
V8-305
5.0L
3.736(IN)
94.9(MM)

CHEVY
ENGINE
1987-94

8.4
8.6
9.3
3.100" diameter head recess .040" deep with four valve reliefs.

APPROXIMATE HEAD VOLUME=6.5cc

Comp. Ht. 1.540
Pin Dia..9273 Offset
1493
STD.
.020
.030
.040
.060
2-5/64
1-3/16
364702
14093663
10128201
14094013
14094014
361988
14094013-4
14094009
* NEW PISTON, AVAILABLE NOW
**NEW PISTON, CHECK FOR AVAILABILITY
Page 82

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