ARP 3.890" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each 7000BU Pins & Wire Seals

Pins & Wire Seals

pilot and driver are aluminum

12 AN Male Inlet / Outlet

1978-1979 Buick Electra

600 in Long

ARP 3.890" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each 7000BU Pins & Wire SealsARP'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