Speed Pro Hellfire Piston Rings 4.560" Bore File Fit 1/16 x 1/16 x 3/16" Thick - Standard Tension Timing Cover / Water Pump Bolt Kit Has externally accessible pressure relief

Has externally accessible pressure relief valve

Stock stamped steel trailing arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires

Includes Trim Ring and Mount Screws

2003-2007 Blue Bird Commercial Bus

Body 1" long

Speed Pro Hellfire Piston Rings 4.560" Bore File Fit 1/16 x 1/16 x 3/16" Thick - Standard Tension Timing Cover / Water Pump Bolt Kit Has externally accessible pressure reliefTop ring is an uncoated special hardened and tempered high strength material that withstands high heat a pressure without collapsing. Standard tension oil ring to provide maximum oil control Ensures dependable performance and superior service life Application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trustFrom pistons to engine bearing components, Speed Pro offers an array of performance engine