VCV103A LSX Vacuum Control Valve & Oil Fill
LSX Vacuum Control Valve & Oil Fill

Vacuum Relief Valve & Fill Cap for LSX Engines

Keeps Dirt Out of Your Engine!
Part #VCV103A
In stock - Usually ships in 1-2 Business Days
Only $108.00 ea
This is the Billet Aluminum Oil fill cap we use in our LSX motor kits, it features a 1/2" NPT port with -12 AN Male fitting for the vacuum pump inlet and a 3/8" NPT pipe inlet with VCV103 budget vacuum relief valve. Valve is adjustable from 12 to 19" vacuum.

Oil Fill & Vacuum Control for LSX Engines

LSX Series Engines - Oil Filler Cap with Vacuum Control Valve and fittings - Adjustable from 12" of mercury up to 19" - via adjustment of knurled end nut.


  • For LSX Engines.
  • Adjustable 12-19 in. hg. Vacuum.
  • One 1/2 NPT Port to connect to Vacuum Pump
  • 3/8 NPT Port for Vacuum Relief Valve.
  • "Lock On" design to securely mount in valve cover.
  • Designed for use with low volume vacuum pumps.
  • Vents air to pump without drawing air through engine.