GM
V8  389 / 6.4L

Pontiac
STD. BORE SIZE

/ mm



COMP. HEIGHT



PIN DIAMETER




COMPRESSION RATIO(s)


Part
Number
1516


SIZE AVAILABILITY

STD, .020,

.030,

.040,

.060,

.080,

.100,

Std



VIN CODE



NOTES

Hypereutectic cast piston.



WRIST PIN P/N

0980x308A

LOCK PIN P/N

APPROX. OVERALL LENGTH


RECOMMENDED FINISHED BORE DIAMETERS

PISTON MAJOR AXIS MUST BE MEASURED PERPENDICULAR TO THE PIN CENTERLINE AT 70 DEGREES FARENHEIT 3.710" DOWN FROM THE PISTON HEAD



Piston
Oversize		 Piston Major Axis
Diameter +.0000/-.0005		 Recommended Finished
Bore Diameter
Std
.020
.030
.040
.060
.080
.100
Std


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