Hastings 4.145" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 2010203 All hubs have 3/16 key

All hubs have 3/16 key @ std SB 10 location

A telescoping handle make it easy to lift an roll

5in OEM tubing size

This system replaces the factory transverse muffler providing a moderate to aggressive sound level

550" long pushrod set works perfectly with High Energy or Magnum rockers

Hastings 4.145" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 2010203 All hubs have 3/16 keyProduct Description: Piston Rings 4. 145 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Plasma Moly 8 Cylinder For nearly 100 years, Hastings has earned its reputation as a leader in piston ring technology.