Solid PTFE; with metal band and choker spring. Stem diameter: 5/16" (0;311"); valve guide diameter: 0;530"; over all length of seal: 0;506"; outside diameter of seal: 0;632". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345") Installation note: Valve guides made of PTFE require another fitment technique than ''regular'' or non-PTFE valve guides; this is due to the PTFE material. They are typically 0.020" (0.50mm) smaller than the valve stem and guide top they're designed to fit. - The guide top should have a decent chamfer - The valve stem should have a decent chamfer; but a mylar seal installation protector / installation capsule (501823 green 5/16" / 0.3125"; 501824 Yellow 11/32" / 0.34375"; 501825 3/8" / 0.375") is advised for easier installation over the valve stem - You have to kind of roll the seal around the valve tip while exerting downward pressure to get it started - Don''t push directly on the very top of the seal to get it on to the guide; you'll collapse the sealing area and tear the seal - A 12 point 12mm socket catches the shoulder of the guide pretty well and can be used to push
Solid PTFE; with metal band and choker spring. Stem diameter: 11/32" (0;343"); valve guide diameter: 0;500"; over all length of seal: 0;510"; outside diameter of seal: 0;596". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345") Installation note: Valve guides made of PTFE require another fitment technique than ''regular'' or non-PTFE valve guides; this is due to the PTFE material. They are typically 0.020" (0.50mm) smaller than the valve stem and guide top they're designed to fit. - The guide top should have a decent chamfer - The valve stem should have a decent chamfer; but a mylar seal installation protector / installation capsule (501823 green 5/16" / 0.3125"; 501824 Yellow 11/32" / 0.34375"; 501825 3/8" / 0.375") is advised for easier installation over the valve stem - You have to kind of roll the seal around the valve tip while exerting downward pressure to get it started - Don''t push directly on the very top of the seal to get it on to the guide; you'll collapse the sealing area and tear the seal - A 12 point 12mm socket catches the shoulder of the guide pretty well and can be used to push
Solid PTFE; with metal band and choker spring. Stem diameter: 11/32" (0;343"); valve guide diameter: 0;562"; over all length of seal: 0;514"; outside diameter of seal: 0;654". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345"). Installation note: Valve guides made of PTFE require another fitment technique than ''regular'' or non-PTFE valve guides; this is due to the PTFE material. They are typically 0.020" (0.50mm) smaller than the valve stem and guide top they're designed to fit. - The guide top should have a decent chamfer - The valve stem should have a decent chamfer; but a mylar seal installation protector / installation capsule (501823 green 5/16" / 0.3125"; 501824 Yellow 11/32" / 0.34375"; 501825 3/8" / 0.375") is advised for easier installation over the valve stem - You have to kind of roll the seal around the valve tip while exerting downward pressure to get it started - Don''t push directly on the very top of the seal to get it on to the guide; you'll collapse the sealing area and tear the seal - A 12 point 12mm socket catches the shoulder of the guide pretty well and can be used to push
Solid PTFE; with metal band and choker spring. Stem diameter: 3/8" (0;375"); valve guide diameter: 0;500"; over all length of seal: 0;507"; outside diameter of seal: 0;600". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345") Installation note: Valve guides made of PTFE require another fitment technique than ''regular'' or non-PTFE valve guides; this is due to the PTFE material. They are typically 0.020" (0.50mm) smaller than the valve stem and guide top they're designed to fit. - The guide top should have a decent chamfer - The valve stem should have a decent chamfer; but a mylar seal installation protector / installation capsule (501823 green 5/16" / 0.3125"; 501824 Yellow 11/32" / 0.34375"; 501825 3/8" / 0.375") is advised for easier installation over the valve stem - You have to kind of roll the seal around the valve tip while exerting downward pressure to get it started - Don''t push directly on the very top of the seal to get it on to the guide; you'll collapse the sealing area and tear the seal - A 12 point 12mm socket catches the shoulder of the guide pretty well and can be used to push t
Solid PTFE; with metal band and choker spring. Stem diameter: 3/8" (0;375"); valve guide diameter: 0;530"; over all length of seal: 0;502"; outside diameter of seal: 0;626". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345") Installation note: Valve guides made of PTFE require another fitment technique than ''regular'' or non-PTFE valve guides; this is due to the PTFE material. They are typically 0.020" (0.50mm) smaller than the valve stem and guide top they're designed to fit. - The guide top should have a decent chamfer - The valve stem should have a decent chamfer; but a mylar seal installation protector / installation capsule (501823 green 5/16" / 0.3125"; 501824 Yellow 11/32" / 0.34375"; 501825 3/8" / 0.375") is advised for easier installation over the valve stem - You have to kind of roll the seal around the valve tip while exerting downward pressure to get it started - Don''t push directly on the very top of the seal to get it on to the guide; you'll collapse the sealing area and tear the seal - A 12 point 12mm socket catches the shoulder of the guide pretty well and can be used to push t
Solid PTFE; with metal band and choker spring. Stem diameter: 3/8" (0;375"); valve guide diameter: 0;562"; over all length of seal: 0;518"; outside diameter of seal: 0;650". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345") Installation note: Valve guides made of PTFE require another fitment technique than ''regular'' or non-PTFE valve guides; this is due to the PTFE material. They are typically 0.020" (0.50mm) smaller than the valve stem and guide top they're designed to fit. - The guide top should have a decent chamfer - The valve stem should have a decent chamfer; but a mylar seal installation protector / installation capsule (501823 green 5/16" / 0.3125"; 501824 Yellow 11/32" / 0.34375"; 501825 3/8" / 0.375") is advised for easier installation over the valve stem - You have to kind of roll the seal around the valve tip while exerting downward pressure to get it started - Don''t push directly on the very top of the seal to get it on to the guide; you'll collapse the sealing area and tear the seal - A 12 point 12mm socket catches the shoulder of the guide pretty well and can be used to push t
Solid Viton rubber; with metal jacket and choker spring. Stem diameter: 6mm; valve guide diameter: 0;385"; over all length of seal: 0;371"; outside diameter of seal: 0;480". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345")
Solid Viton rubber; with metal jacket and choker spring. Stem diameter: 7mm; valve guide diameter: 0;435"; over all length of seal: 0;517"; outside diameter of seal: 0;550". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345")
Solid Viton rubber; with metal jacket and choker spring. Stem diameter: 5/16" (0;311"); valve guide diameter: 0;420"; over all length of seal: 0;412"; outside diameter of seal: 0;566". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345")
Solid Viton rubber; with metal jacket and choker spring. Stem diameter: 3/8" (0;375"); valve guide diameter: 0;562"; over all length of seal: 0;516"; outside diameter of seal: 0;661". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom application. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345")
- STD length replacement High Performance cylinder studs - Made from Nickel Chrome Moly 8740 material - 180;000 psi yield strength; fine grain - Threads are rolled for maximum strength and heat treated - Black oxide corrosion resistant finish - Entire body is centerless ground to insure concentricity and remove notch sensitivity
Replacement Kibblewhite Precision Machining piston pin bushings. Manufactured from 100% machined SAE660 bearing bronze.
Black. Viton rubber. Replaces the black colored OEM injector o-ring. This o-ring is not separately available from OEM. Note: See 568493 for the matching orange fuel injector o-ring.
Used with 3-5/8" big bore pistons that use .078" (2.0mm) compression and 3/16" (.186") (4.75mm) oil rings. Std cyl. bore: 3.625" (92.075mm). 1st ring: 2.0mm. 2nd ring: 2.0mm. oil ring: 4.75mm. Note: When 3-5/8" S&S pistons are used you should; in practically all cases; use the Hastings rings for S&S pistons that are mentioned as ''S&S 3-5/8 Big Bore''. These come with 1.6mm compression rings and 4.0mm oil rings. Check before you order. 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.)
Used with 3-5/8" big bore pistons that use .078" (2.0mm) compression and 3/16" (.186") (4.75mm) oil rings. Std cyl. bore: 3.625" (92.075mm). 1st ring: 2.0mm. 2nd ring: 2.0mm. oil ring: 4.75mm. Note: When 3-5/8" S&S pistons are used you should; in practically all cases; use the Hastings rings for S&S pistons that are mentioned as ''S&S 3-5/8 Big Bore''. These come with 1.6mm compression rings and 4.0mm oil rings. Check before you order. 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.)
Used with 3-5/8" big bore pistons that use .078" (2.0mm) compression and 3/16" (.186") (4.75mm) oil rings. Std cyl. bore: 3.625" (92.075mm). 1st ring: 2.0mm. 2nd ring: 2.0mm. oil ring: 4.75mm. Note: When 3-5/8" S&S pistons are used you should; in practically all cases; use the Hastings rings for S&S pistons that are mentioned as ''S&S 3-5/8 Big Bore''. These come with 1.6mm compression rings and 4.0mm oil rings. Check before you order. 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.)
Used with 3-5/8" big bore pistons that use .078" (2.0mm) compression and 3/16" (.186") (4.75mm) oil rings. Std cyl. bore: 3.625" (92.075mm). 1st ring: 2.0mm. 2nd ring: 2.0mm. oil ring: 4.75mm. Note: When 3-5/8" S&S pistons are used you should; in practically all cases; use the Hastings rings for S&S pistons that are mentioned as ''S&S 3-5/8 Big Bore''. These come with 1.6mm compression rings and 4.0mm oil rings. Check before you order. 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.)
Std cyl. bore: 3.4980" (88.85 mm). 1st. ring: 1.6mm. 2nd ring: 1.6mm. oil ring: 4.0mm. 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. (Information provided by Hastings Manufacturing Company; Inc.).
Std cyl. bore: 3.4980" (88.85 mm). 1st. ring: 1.6mm. 2nd ring: 1.6mm. oil ring: 4.0mm. 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. (Information provided by Hastings Manufacturing Company; Inc.).
Std cyl. bore: 3.4980" (88.85 mm). 1st. ring: 1.6mm. 2nd ring: 1.6mm. oil ring: 4.0mm. 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. (Information provided by Hastings Manufacturing Company; Inc.).
Std cyl. bore: 3.4980" (88.85 mm). 1st. ring: 1.6mm. 2nd ring: 1.6mm. oil ring: 4.0mm. 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. (Information provided by Hastings Manufacturing Company; Inc.).
Std cyl. bore: 3.4980" (88.85 mm). 1st. ring: 1.6mm. 2nd ring: 1.6mm. oil ring: 4.0mm. 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. (Information provided by Hastings Manufacturing Company; Inc.).
Std cyl. bore: 3.4980" (88.85 mm). 1st. ring: 1.6mm. 2nd ring: 1.6mm. oil ring: 4.0mm. 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. (Information provided by Hastings Manufacturing Company; Inc.).
S&S chr/moly replacement piston ring set. Fits all Evolution & pre-Evolution engines that are equipped with an S&S 3-5/8" big bore kit that have 1/16" (1.5mm) compression rings and 5/32" (4.2mm) oil rings. Will also fit other manufacturers 3-5/8" Big Bore kits (like some Axtell kits); that are equipped with the same piston grooves. Std cyl. bore: 3.625" (92.075mm). 1st ring: 1.5mm (.058"). 2nd ring: 1.5mm (.058"). oil ring: 4.2mm (.155"). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all Evolution & pre-Evolution engines that are equipped with an S&S 3-5/8" big bore kit that have 1/16" (1.5mm) compression rings and 5/32" (4.2mm) oil rings. Will also fit other manufacturers 3-5/8" Big Bore kits (like some Axtell kits); that are equipped with the same piston grooves. Std cyl. bore: 3.625" (92.075mm). 1st ring: 1.5mm (.058"). 2nd ring: 1.5mm (.058"). oil ring: 4.2mm (.155"). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all Evolution & pre-Evolution engines that are equipped with an S&S 3-5/8" big bore kit that have 1/16" (1.5mm) compression rings and 5/32" (4.2mm) oil rings. Will also fit other manufacturers 3-5/8" Big Bore kits (like some Axtell kits); that are equipped with the same piston grooves. Std cyl. bore: 3.625" (92.075mm). 1st ring: 1.5mm (.058"). 2nd ring: 1.5mm (.058"). oil ring: 4.2mm (.155"). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all Evolution & pre-Evolution engines that are equipped with an S&S 3-5/8" big bore kit that have 1/16" (1.5mm) compression rings and 5/32" (4.2mm) oil rings. Will also fit other manufacturers 3-5/8" Big Bore kits (like some Axtell kits); that are equipped with the same piston grooves. Std cyl. bore: 3.625" (92.075mm). 1st ring: 1.5mm (.058"). 2nd ring: 1.5mm (.058"). oil ring: 4.2mm (.155"). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all Evolution & pre-Evolution engines that are equipped with an S&S 3-5/8" big bore kit that have 1/16" (1.5mm) compression rings and 5/32" (4.2mm) oil rings. Will also fit other manufacturers 3-5/8" Big Bore kits (like some Axtell kits); that are equipped with the same piston grooves. Std cyl. bore: 3.625" (92.075mm). 1st ring: 1.5mm (.058"). 2nd ring: 1.5mm (.058"). oil ring: 4.2mm (.155"). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all S&S 4" bore Super Sidewinders (incl. TC). Std cyl. bore: 4.00" (101.60mm). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all S&S 4" bore Super Sidewinders (incl. TC). Std cyl. bore: 4.00" (101.60mm). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all S&S 4" bore Super Sidewinders (incl. TC). Std cyl. bore: 4.00" (101.60mm). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.
S&S chr/moly replacement piston ring set. Fits all S&S 4" bore Super Sidewinders (incl. TC). Std cyl. bore: 4.00" (101.60mm). Note compression ring gap: To determine the correct ring gap on your newly installed piston rings is very important. A too narrow gap may result in premature piston ring/cylinder wall wear or even seizure; possibly breaking rings and/or damage to pistons and/or cylinder walls; and so on. A piston ring gap that is wider than necessary will result in needless compression loss and reduced engine efficiency. Recommended ring gap is .004" per inch of cylinder diameter for street engines. For a 3-5/8" (3.625") bore engine piston ring gap would be 3.625" x .004" = .0145". (.0145" x 25.4 = 0.3683mm or; when rounded of; 0.37mm). Information provided by S&S Cycle; Inc.