Hastings, pierścienie tłokowe 3-5/16″. +.030″

3-5/16″ piston ring set with 3/32″ (.09375″) gray iron parkerized compression and 3/16″ (.186″) chromed 3-piece oil rings. Fits 37-48 74″ (1200cc) ”U” model Flatheads and 48-52 61″ (1000cc) E; EL Panhead models. Std bore: 3-5/16″ (84.138mm). 1st ring: 2.38mm (3/32″). 2nd ring: 2.38mm (3/32″). oil ring: 4.75mm (3/16″). Tech tip: Piston grooves vs piston rings. It”s not difficult to determine if a Hastings piston ring set will fit a certain piston. You should measure the height of the piston groove in the piston itself. The 2 top grooves will be for compression rings; the lower groove will be for the oil ring. In most cases Hastings oil rings are of the low tension 3-piece flex vent type. Ring heights are listed for reference. Tech tip: Piston oversizes. For each oversize cylinder diameter will increase with .010″ (0.254mm). The standard bore of the cylinder is listed for reference. (Tech tip information provided by Hastings Manufacturing Company; Inc.)