CHEVROLET
Cyl.
Engine
Bore		 Years
Comp.
Ratio		 NOTES: Part No.
Sizes		 Rings O.E. Assy.
No.		 O.E. Casting
No.		 Head
Shape
V8 396
6.5 L
4.125(IN)
104.8(MM)

CHEVY
ENGINE
1970

9.3
Used in either left or right cyl. bank. .132" hi crown. Use Std. size piston for .030" o/s 396 application. Not destroked.

Comp. Ht. 1.747
Pin Dia..9898 Offset
1445
Std.
.020
.030
.040
.060
2-5/64
1-3/16
3969981
3969975
V8 400
6.6 L
4.125(IN)
104.8(MM)

CHEVY
ENGINE
1970-80

8.5
Small block. 3.46" dia. head recess .145" deep.

APPROXIMATE HEAD VOLUME=20cc

Comp. Ht. 1.540
Pin Dia..9273 Offset
1443
Std.
.020
.030
.040
.060
2-5/64
1-3/16
3972160
3991457
329245
3951542
3989018
329244
V8 400
6.6 L
4.125(IN)
104.8(MM)

CHEVY
ENGINE
1970-80

9.2
10.3
Small block. .075" step down head 2 valve reliefs. Broken sets Factory only. Not destroked. Comp. ratio with cyl. head 64cc=10.3; 76cc=9.2:1.DISCONTINUED UPON DEPLETION OF STOCK.

APPROXIMATE HEAD VOLUME=2cc

Comp. Ht. 1.560
Pin Dia..9273 Offset
1473LR
Std.
.020
.030
.040
.060
2-5/64
1-3/16
3991457
3989018
V8 402
6.6 L
4.125(IN)
104.8(MM)

CHEVY
ENGINE
1970-72

8.3
Big Block. .132" crown. Used in either left or right cyl. bank. Not destroked.

Comp. Ht. 1.747
Pin Dia..9898 Offset
1445
Std.
.020
.030
.040
.060
2-5/64
1-3/16
3969981-2
3993861-2
3969975-76
3993849-50
V8 427
7.0 L
4.250(IN)
108(MM)

CHEVY
ENGINE
1966-69

9.5
.140" crown. Used in either left or right cylinder bank.

Comp. Ht. 1.750
Pin Dia..9898 Offset
1434
Std.
.020
.030
.040
.060
2-5/64
1-3/16
3888327-8
3869967-8
3925579-80
V8 427
7.0 L
4.250(IN)
108(MM)

CHEVY
ENGINE
1968-84

8.0
Truck engine. Flat head with one valve relief.

APPROXIMATE HEAD VOLUME=1cc

Comp. Ht. 2.160
Pin Dia..9898 Center
1440D
Std.
.020
.030
.040
.060
1-3/32
2-5/64
1-3/16

Iron Top
Groove
3893251
3874816
V8 427
7.0 L
4.250(IN)
108(MM)

CHEVY
ENGINE
1968-84

8.0
Coated Skirts, Truck engine. Flat head with one valve relief.

APPROXIMATE HEAD VOLUME=1cc

Comp. Ht. 2.160
Pin Dia..9898 Center
1440DC
Std.
.020
.030
.040
.060
1-3/32
2-5/64
1-3/16

Iron Top
Groove
3893251
3874816
* NEW PISTON, AVAILABLE NOW
**NEW PISTON, CHECK FOR AVAILABILITY
Page 31

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