Valves

Your engine breathes, adjusts timing, and manages fluid flow through a network of valves—and every one of them must open and close with absolute precision. This collection brings together the valves you need to build, rebuild, or upgrade your vehicle's most critical systems.

We carry intake and exhaust valves in stock and oversized diameters, from stainless steel to titanium and sodium-filled options, along with valvetrain components like valve guides, seals, and keepers. You'll also find PCV valves, wastegate valves, blow-off valves, check valves, and fuel system valves—all from manufacturers who understand the heat, pressure, and fatigue cycles these parts endure.

How to choose:

  • Match the valve to your cylinder head's seat dimensions and stem diameter—always verify against your engine builder's specs or OE measurements.
  • For forced induction or high-rpm builds, consider upgraded materials and multi-angle valve jobs to improve flow and heat dissipation.
  • When replacing a failed valve, inspect the guide, seat, and related components; a dropped valve is often a symptom, not the root cause.
  • System-specific valves (PCV, wastegate, etc.) should match the intended boost, vacuum, or pressure levels exactly; a wrong spring rate or seal material can cause drivability issues or even engine damage.

Whether you're lapping in a single replacement or assembling a full valvetrain for a race motor, we have the precision components to keep everything sealing and flowing as designed.

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Black anodized 6061 aluminum -6AN rollover safety valve for fuel cell venting
$25.99 $34.99
-26%
Low in stock
Eight Supertech black nitrided exhaust valves with +0.5mm oversized heads for the Nissan KA24DE engine.
$207.56 $259.37
-20%
Low in stock
Set of eight Supertech Inconel exhaust valves for the Nissan SR20VE engine.
$319.39 $399.12
-20%
Out of stock
Set of six Supertech black nitrided intake valves for Volkswagen R32 VR6 24V engines.
$164.96 $206.14
-20%
Low in stock
Set of six Supertech black nitrided intake valves for VW R32 and VR6 24V engines
$164.96 $206.14
-20%
Low in stock
Set of 10 Supertech black nitrided intake valves for VW 2.0L 16V with 32mm dish heads and 6.95mm stems.
$267.37 $334.11
-20%
Low in stock
Set of six Supertech black nitrided intake valves for Volkswagen 2.8L VR6 engines.
$160.43 $200.48
-20%
Low in stock
Eight Supertech black nitrided +1mm oversize intake valves for Audi/VW 2.0T FSI 16V engines.
$224.55 $280.60
-20%
Low in stock
Set of ten Supertech black nitrided steel intake valves for Audi and VW 2.5T FSI engines.
$267.37 $334.11
-20%
Low in stock
Set of eight Supertech black nitrided intake valves for Audi and VW 2.0T FSI 16V engines.
$213.89 $267.28
-20%
In stock
Set of 10 Supertech black nitrided intake valves for Audi and VW 2.0T FSI 16V engines
$267.37 $334.11
-20%
Low in stock
Set of six black nitrided exhaust valves by Supertech for VW VR6 2.8L engines.
$159.12 $198.85
-20%
In stock
Set of six Supertech Inconel exhaust valves for Volkswagen R32 VR6 24V engines.
$259.01 $323.67
-20%
Low in stock
Set of six Supertech Inconel exhaust valves for Volkswagen R32 VR6 24V engines.
$259.01 $323.67
-20%
Low in stock
Set of 10 Supertech Inconel flat head exhaust valves for VW 1.8L and 2.0L 16V engines
$396.89 $495.97
-20%
Low in stock
Set of 8 Supertech +1mm oversize Inconel exhaust valves for Audi and VW 2.0T FSI 16V engines.
$333.08 $416.23
-20%
Low in stock
Set of eight Supertech Inconel exhaust valves with triple groove stems for Audi/VW EA113 engines.
$317.51 $396.78
-20%
Low in stock
Ten Supertech Inconel exhaust valves for Audi/VW 2.5T FSI engines with 28.00mm standard head diameter.
$396.80 $495.86
-20%
Low in stock
Set of eight Supertech Inconel exhaust valves for Audi and VW 2.0T FSI 16V engines
$317.51 $396.78
-20%
Low in stock
Set of 10 silver Supertech Inconel exhaust valves for Audi and VW 2.0T FSI 16V engines.
$396.89 $495.97
-20%
Low in stock
Set of six Supertech black nitrided intake valves for Toyota GR Corolla G16E-GTS engines.
$157.47 $196.78
-20%
Low in stock
Set of twelve Supertech black nitrided intake valves for Toyota 5VZ-FE engines
$297.65 $371.96
-20%
Low in stock
Set of eight Supertech black nitrided intake valves for Toyota 4AGE 16V engines.
$187.39 $234.16
-20%
Low in stock
Set of 12 Supertech black nitrided intake valves with +1mm oversize heads for Toyota 2JZ engines.
$285.81 $357.15
-20%
Low in stock
Set of 12 Supertech black nitrided intake valves for Toyota 2JZ engines.
$285.73 $357.06
-20%
In stock
Twelve Supertech black nitrided intake valves for Toyota 1JZ-GTE engines showing the hardened finish and valve stems.
$272.19 $340.14
-20%
Low in stock
Set of eight black nitrided Supertech exhaust valves for Toyota 4A-GE 16V engines.
$190.45 $237.99
-20%
Low in stock
Set of eight Supertech black nitrided exhaust valves for Toyota 4AGE 16V engines.
$185.93 $232.35
-20%
Low in stock
Set of six Supertech Inconel exhaust valves with 32mm head diameter for Toyota G16E-GTS engines.
$347.43 $434.16
-20%
Low in stock
Set of 12 Supertech +1mm oversize Inconel 751 exhaust valves for Toyota 2JZ engines.
$417.05 $521.16
-20%
Low in stock

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