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3-3/16 in Inside Width
Flat base eases mounting
Main hoops are custom bent to fit each application precisely
Crash your modified
ARP 4.000" Tapered Billet Aluminum Ring Compressor RG10003XS 3-3/16 in Inside WidthARP'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
