Valve Int; BT'84-04 OS Hi-Flow

* One piece forged racing grade stainless steel alloy.

* Hard black nitride finish.

* Bearing quality hardened tip at the end of the stem to prevent premature wear with high-lift applications.

* 45o angle below the lock groove to facilitate the valve seal installation.

* Heat treated with a special process.

* Stem is centerless ground for longer life.

Head Dia = 1.940in.

OAL = 4.440in.

Stem Dia = 0.3108i n.

Tech Tips:-

If Used in Stock Heads Larger Seats Must be Installed.