A rubber pull-through valve stem can get cut or torn under heavy loading at the drag strip, leading to a slow leak at the worst possible time. This bolt-in brass stem resists that cutting action, keeping the seal intact under hard launches.

Allstar Performance ALL44134 Brass Valve Stem Features:

• Brass construction resists cutting during hard contact.
• Bolt-in style for a 5/8 in. rim hole.
• Meets NHRA requirements for cars running 11.99 seconds or quicker.
• Sold individually.