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Recent Addition more
Valve Spring Set Street Performance & Race High RPM Lift Up to 12mm 4 Cyl & TS
Valve Spring Set Street Performance & Race High RPM Lift Up to 12mm 4 Cyl & TS
$68.00
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Valve 1600/1750 Race/Street Stainless Oversize 9 x 42.5 mm Intake
[17509IVOS]
$16.00

These special stainless steel oversize intake valves fit all 1600 and 1750 engines. There is no need to replace the standard seat in the head.

Flow compared to standard diameter is dramatically increased by 10-13% at the low lift:

  • Larger window of valve
  • The 45 degree seating
  • The special shape of the back side
  • The special back side swirl pattern
  • This 42.5 mm valve diameter overlaps the original 42mm seat .5mm. This .5 margin of overlap greatly enhances flow at low lift

 

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