Valve Int; OS Jims 120 / 131 heads

* one piece forged racing grade stainless steel alloy.

* Hard Chrome process creates a valve that is smoother and stronger than O.E.M.

* Stems are centerless ground for a longer life

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

Head Dia = 2.150in.

OAL = 4.480in.

Stem Dia = 0.3108in.