Akerly & Childs 4.375" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each R07C022XL Our research and development program

Our research and development program supports our ongoing commitment to raise the bar across the industry for strength and durability

Bolts have 7/8"-9 threads and are available in a fixed or swivel end design

3-1/2 in Polished Tips

Higher cooling system pressure raises the boiling point of coolant to help reduce the risk of overheating

Akerly & Childs 4.375" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each R07C022XL Our research and development programProduct Description: Piston Ring Compressor 4. 375 in Bore Tapered Billet Aluminum Black Anodized Sold Individually Akerly & Childs over 50 years experience in racing provide products for xtreme racing conditions.