S&S 4" Bore Piston Ring Set. +.020" For Harley Davidson
90.22 €
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S&S Chrome/Molybdenum Replacement Piston Ring Set.
Fits all S&S Super Sidewinders with 4" bore (including TC).
Standard cylinder bore: 4.00" (101.60 mm).
Note the compression ring gap: It is very important to determine the correct ring gap on newly installed piston rings.
Too tight a gap can result in premature piston ring/cylinder wall wear or even seizure, possibly breaking the rings and/or damaging the pistons and/or cylinder walls, etc.
A piston ring gap that is wider than necessary will result in unnecessary compression loss and reduced engine efficiency.
The recommended ring gap is 0.004" per inch of cylinder bore for street engines.
For a 3-5/8" (3.625") bore, the engine piston ring gap would be 3.625" x 0.004" = 0.0145". (0.0145" x 25.4 = 0.3683 mm or, when rounded, 0.37 mm).
Information provided by S&S Cycle, Inc.
Compatible with: > S&S SSW engines
S&S 4" Bore Piston Ring Set. +.020" For Harley Davidson
90.22 €
Fits all S&S Super Sidewinders with 4" bore (including TC).
Standard cylinder bore: 4.00" (101.60 mm).
Note the compression ring gap: It is very important to determine the correct ring gap on newly installed piston rings.
Too tight a gap can result in premature piston ring/cylinder wall wear or even seizure, possibly breaking the rings and/or damaging the pistons and/or cylinder walls, etc.
A piston ring gap that is wider than necessary will result in unnecessary compression loss and reduced engine efficiency.
The recommended ring gap is 0.004" per inch of cylinder bore for street engines.
For a 3-5/8" (3.625") bore, the engine piston ring gap would be 3.625" x 0.004" = 0.0145". (0.0145" x 25.4 = 0.3683 mm or, when rounded, 0.37 mm).
Information provided by S&S Cycle, Inc.
Compatible with: > S&S SSW engines