Speed Pro Hellfire Piston Rings 4.155" Bore File Fit 1/16 x 1/16 x 3/16" Thick - Standard Tension Spark Plug Washer 050" - Open Pressure: 735

050" - Open Pressure: 735 @ 1

Series 100-500 1977-1964

True DOM tubing with no seams

Rear spring rates - 160 lbs

2012-2017 Jeep Wrangler

Speed Pro Hellfire Piston Rings 4.155" Bore File Fit 1/16 x 1/16 x 3/16" Thick - Standard Tension Spark Plug Washer 050" - Open Pressure: 735Top 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