SILV-O-LITE
More Information for SILV-O-LITE 3490H
{Alternate Inventory Numbers: 3490H.030, 3490H020, 3490H040, 3490H060, 3490HSTD, S3490H020, S3490H030, S3490H040, S3490H060, S3490HSTD}
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SILV-O-LITE 3490H  
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  • 0.030" Oversize (Only 6 Remaining) ($17.30/Each) x6 $103.80 Warehouse
  • 0.020" Oversize (Out of Stock)
  • 0.040" Oversize (Out of Stock)
  • 0.060" Oversize (Out of Stock)
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SILV-O-LITE 3490H Specifications
Bore Diameter (IN)4
Bore Diameter (MM)101.6
Compression Height (In)1.54
Compression Height (mm)39.1
Compression Ratio8.8, 9.4
Crown TypeDish
Engine FamilyGM V6
Engine ManufacturerChevrolet
Oil Ring Thickness (In)0.1875
Pin ConfigurationOffset
Pin Number0927x300A
Pin TypePress
Piston Head TypeDish
Piston MaterialCast 390 Hypereutectic Alloy
Piston Pin Outside Diameter (In).927
Piston Pin Outside Diameter (mm)23.5
Second Compression Ring Thickness (In)0.0781
Top Compression Ring Thickness (In)0.0781
Top Land.250
Vin CodeW, Z
Hypereutectic; 3.140" Diameter Recess .070" Deep With 4 Valve Reliefs; Use 1986 & earlier rings

For 100 years Silv-o-lite has produced high quality OE replacement pistons for engine rebuilding. Every manufacturing process is done in house, including alloying the aluminum, casting, heat treating, diamond machining, and a full array of anodizing and coatings for the piston crowns, ring grooves, and skirts.


Additional Resources

General Installation Instructions
OEM / Interchange Numbers: 10049073, 101594241, 12509282, 12514101, 12520264, 14077948, 14094004, 3991488, 6271097

SILV-O-LITE Warranty Information:
12 Months