VAC Heavy Duty Valve sets are precision made to our exacting specifications.
Intake valves are Forged Stainless Steel, while the exhaust valves are a Severe Duty Alloy. This set is built for super high horsepower, forced induction, or Nitrous Oxide equipped S14s that generate very high combustion temps.
Made from a highly advanced alloy (similar to manufacture name 'Inconel'), our valves will survive where no others will.
If you are shooting for ultra high HP/ High boost we have the valves for you!

Our valves feature:

• One piece high tech alloy construction for maximum heat resistance(compared to 2 piece valves which fail at weld, and melt at high boost)
• Single (1) groove keeper style for maximum deformation and heat related failure resistance
• Extreme heavy duty; if these don't survive nothing will
• Tested to 9500RPMs
• Valve sets are oversized, +2in +1.5ex optimum for high horsepower applications

VAC Tech Tip:
These valves are built for high heat and severe duty. With our valve springs they should prove exceptionally reliable.
For naturally aspirated, high revving applications, we recomend our forged stainless steel valves as they are lighter.

Specify if you need our full valve set or just exhaust valves. Valve set includes Forged Stainless intake, Severe Alloy exhaust

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