Valves

Hard tuned engines whether street or strip require upgraded valves to maintain reliability under severe conditions.
Regarded as the premium material for high combustion temperatures in forced induction applications, NITTO Oversize Valves are manufactured from one piece high nickel content 21-4N stainless steel.
NITTO Oversize Valves are designed for use in the most demanding conditions ensuring increased strength,fast temperature dissipation and long term durability while increasing flow,horsepower and torque at mid to high RPM levels.
Chrome plated stems are standard on exhaust valves with Black Nitride coating on all intake valves minimizing valve stem wear.

 

 

 

• Chrome-plated exhaust valve stem protects against galling on start up
• Black nitride coating on intake valves prevent wear on valve stem due to fuel wash down
• Designed for use in all turbo charged and NOS applications
• Oversize valves increase flow and horsepower

 

ENGINE MODEL	PART NUMBER	OVERSIZE	NOTES
FORD
BARRA 4L	NIT-VAL-BARRA	STD IN AND EX	OVERSIZE NOT APPLICABLE MUST USE STD SIZE
MITSUBISHI
4G63	NIT-VAL-4G63	1MM IN AND EX
NISSAN
RB26	NIT-VAL-RB26	1MM IN AND EX
RB25	NIT-VAL-RB25	1MM IN AND EX
RB30	NIT-VAL-RB30	1MM IN AND EX
SR20	NIT-VAL-SR20	1MM IN AND EX
SUBARU
EJ20 / EJ25	NIT-VAL-EJ25	1MM IN AND EX
TOYOTA
2JZ	NIT-VAL-2JZ	1MM IN AND EX