Seller notes

Fitment and Product Information: 4.390" Tapered Ring Compressor - Aluminum Product Details: Brand: ARPPart Number: 900-3900UPC: 672036018689 Product Features and Description: 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 numb...

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