ARP Billet 3.552" Bore Tapered Piston Ring Compressor (899-5520) Cast Elbows Anti Drain Back Valve: No

Anti Drain Back Valve: No />Bypass Valve: No

5mm Top Ring Description (Material

Manufacturer's Part Number: 129174005

55 HP @ 5818 RPM

and it has a much larger area from the pressure to act on for regulation

ARP Billet 3.552" Bore Tapered Piston Ring Compressor (899-5520) Cast Elbows Anti Drain Back Valve: NoARP Billet 3. 552" Bore Tapered Piston Ring Compressor (899 5520) ARP Tapered Ring Compressors 899 5520 ARP tapered piston ring compressors are CNC machined from 6061 T6 billet aluminum tube material and feature a true radius for each individual bore diameter. They're also relieved to accommodate wire O rings on the bottom. Type 3 anodizing is used for long life, and each bore size is prominently engraved in 3 4 in. high numbers for easy