ARP 3.780" Tapered Ring Compressor 121025 Water Pressure

Water Pressure

1979-1995 GMC C3500

Heavy-duty 40 vane brake rotors provide added strength and cooling over standard 36 vane rotors

Adjustable Angle

GM F-Body 1982-1992

ARP 3.780" Tapered Ring Compressor 121025 Water PressureARP's ring compressors are CNC machined from 6061 T6 billet tube material and feature a true radius for each different bore diameter. What's more, they are relieved for wire O rings on bottom. Type 3 anodizing is used for long life, and the bore size is prominently engraved in 3 4 in high numbers for easy identification. Standard stocking sizes from 3. 552 in to 4. 750 in (SAE) and 75mm to 95. 5mm (metric). The true radius design is far superior to