Silv-O-Lite - Better Pistons Since 1922

General Motors

V 8 400 / 6.6L
1967-79
Pontiac

STD. BORE SIZE

4.12 / 104.6mm

COMP. HEIGHT

1.7

PIN DIAMETER

0.9805
offset

COMPRESSION RATIO(s)

8.2

Part
Number

1526

SIZE AVAILABILITY

VIN CODE

RING PACK

2-5/64
1-3/16

O.E. ASSY. NO.

9788366
9788369
478810
499053

NOTES

Piston W,8 Valve Reliefs For Use In Either 1st Or 2nd Type Engines.

WRIST PIN P/N

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