Viton Valve Stem Seals, BMW N55 / S55 Nissan The fan shroud mounts directly

The fan shroud mounts directly to the stock radiator

M54B30 intake cam = 8 degrees advance for 2

85 A/R | 0

it features AISI 304 stainless steel Cooper Rings that bite into the aluminum head for maximum sealing

Upgrade your BMW M62 engine with 5150's premium high performance valves

Viton Valve Stem Seals, BMW N55 / S55 Nissan The fan shroud mounts directlyViton Stem Seals for High Performance BMW N55 & S55 Engines Viton Stem Seals are engineered to prevent oil from entering the combustion chamber, ensuring optimal engine performance. Crafted from premium Viton material, these seals offer superior control and durability across the entire RPM range. Their compact design allows for clearance in small inside diameter valve springs. Developed to withstand the extreme conditions of high horsepower and