Supertech Triple Groove Intake & Exhaust Valves for 1985-1993 BMW 325i (E30) M20B25 12v 2.5L Engines
Intake Valves
BMIVN-1084
Head Diam: 42.00mm (STD)
Stem Diam: 6.97mm
Length: 102.50mm
Material: Black Nitride
Groove Type: Triple Groove
Valve Type: Intake
BMIVN-1085
Head Diam: 43.00mm (+1mm)
Stem Diam: 6.97mm
Length: 102.50mm
Material: Black Nitride
Groove Type: Triple Groove
Valve Type: Intake
Exhaust Valves
BMEVN-1084
Head Diam: 36.00mm (STD)
Stem Diam: 6.95mm
Length: 102.50mm
Material: Black Nitride
Groove Type: Triple Groove
Valve Type: Exhaust
BMEVI-1085
Head Diam: 37.00mm (+1.8mm)
Stem Diam: 6.95mm
Length: 102.50mm
Material: Inconel
Groove Type: Triple Groove
Valve Type: Exhaust
*Complete Set of 6 Intake and 6 Exhaust Valves*
Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and provides the strength to withstand just about any application. Our exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for even greater strength at higher temperatures. Our stainless steel valves are one piece forged valves, and depending on the application feature hardened tips, hardened seats, swirl polish, undercut, and our black nitride coating. Our black nitride coated valves feature a harder surface area and a smoother finish, providing less friction and subsequently longer life.
Supertech manufactures a variety of high performance Inconel valves for many applications. These valves are manufactured from a Nickel base super alloy material (Inconel 751 or Nimonic 80A) this material is chosen because it is designed to withstand very high temperatures. These valves feature a one-piece forging, hardened tip, and our “superfinish” stem. Our Inconel valves are extremely popular choice for turbo and supercharged applications.
Intake Valves
BMIVN-1084
Head Diam: 42.00mm (STD)
Stem Diam: 6.97mm
Length: 102.50mm
Material: Black Nitride
Groove Type: Triple Groove
Valve Type: Intake
BMIVN-1085
Head Diam: 43.00mm (+1mm)
Stem Diam: 6.97mm
Length: 102.50mm
Material: Black Nitride
Groove Type: Triple Groove
Valve Type: Intake
Exhaust Valves
BMEVN-1084
Head Diam: 36.00mm (STD)
Stem Diam: 6.95mm
Length: 102.50mm
Material: Black Nitride
Groove Type: Triple Groove
Valve Type: Exhaust
BMEVI-1085
Head Diam: 37.00mm (+1.8mm)
Stem Diam: 6.95mm
Length: 102.50mm
Material: Inconel
Groove Type: Triple Groove
Valve Type: Exhaust
*Complete Set of 6 Intake and 6 Exhaust Valves*
Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and provides the strength to withstand just about any application. Our exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for even greater strength at higher temperatures. Our stainless steel valves are one piece forged valves, and depending on the application feature hardened tips, hardened seats, swirl polish, undercut, and our black nitride coating. Our black nitride coated valves feature a harder surface area and a smoother finish, providing less friction and subsequently longer life.
Supertech manufactures a variety of high performance Inconel valves for many applications. These valves are manufactured from a Nickel base super alloy material (Inconel 751 or Nimonic 80A) this material is chosen because it is designed to withstand very high temperatures. These valves feature a one-piece forging, hardened tip, and our “superfinish” stem. Our Inconel valves are extremely popular choice for turbo and supercharged applications.