Supertech Budget Valves STD Size Honda Acura B16A B18C DOHC VTEC B-Series GSR

Fits Honda & Acura - B16, B16A, B16A2, B16A3, B18C, B18C1, B18C5, B18C6 VTEC Engines.

- Supertech Budget 200 Series Valves, Great as OEM Replacement Valves -

Complete Set of 16 Valves (8 Intake and 8 Exhaust Valves)

Supertech Part # HIVN-200F - Intake - STD Size - Flat Face

Intake Valve Specs - 33mm Head Diameter - 5.48mm Stem Diameter - 102.50mm Length

Supertech Part # HEVN-200F - Exhaust - STD Size - Flat Face 

Exhaust Valve Specs - 28mm Head Diameter - 5.45mm Stem Diameter - 102.50mm Length

 Black Nitride Valves

• - The micro hardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitride layer (micro hardness is 800hv minimum) 

• - Surface finish is smoother than with chromed valve stems, having less friction between the stem and guide. 

• - Valve seat surface is harder with the nitride layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats). 

• - Higher RPM engines take full advantage of all previous features. The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction. 

• - The nitride layer is adhered to the base material at microscopic level, so it will not "flake" or brake when the valves bend due to impacts with the pistons.