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Harley-Davidson Accessories

Harley-Davidson Accessories Big Bore Kits

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Showing 1–48 of 58 Screamin' Eagle Performance by Harley-Davidson Accessories

Harley-Davidson Accessories 3-7/8" Standard Bore. When combined with stock cylinder heads, these forged 3-7/8" pistons boost the compression ratio of your 3-7/8" big bore cylinder set-up. The combination results in a compression ratio of 10.5:1. Piston skirts feature a unique black coating for improved wear-resistance, better fit and reduced noise. These pistons include Titanium SST rings to withstand the stresses seen in racing. Complete kit includes pistons, rings, wrist pins and clips.

3-7/8" Standard Bore. When combined with stock cylinder heads, these forged 3-7/8" pistons boost the compression ratio of your 3-7/8" big bore cylinder set-up. The combination results in a compression ratio of 10.5:1. Piston skirts feature a unique black coating for improved wear-resistance, better fit and reduced noise. These pistons include Titanium SST rings to withstand the stresses seen in racing. Complete kit includes pistons, rings, wrist pins and clips.

Harley-Davidson Accessories

#22144-08B

£381.08£342.97
Member£323.92-15%
Harley-Davidson Accessories Except for relieving the combustion chamber on stock 883 cylinder heads for correct compression ratio, these cylinders make the conversion to 1200cc a bolt-on operation. No cylinder head machining is required when used with Screamin' Eagle Cylinder Heads, or the 883/1200 Conversion Piston Kit. Cylinders are sold separately; two are required for the conversion. All EFI models require ECM calibration (priced separately). For race application only.

Except for relieving the combustion chamber on stock 883 cylinder heads for correct compression ratio, these cylinders make the conversion to 1200cc a bolt-on operation. No cylinder head machining is required when used with Screamin' Eagle Cylinder Heads, or the 883/1200 Conversion Piston Kit. Cylinders are sold separately; two are required for the conversion. All EFI models require ECM calibration (priced separately). For race application only.

Harley-Davidson Accessories

#16954-02A

£331.82£298.64
Member£282.05-15%
Harley-Davidson Accessories 3-7/8" Standard Bore. When combined with stock cylinder heads, these forged 3-7/8" pistons boost the compression ratio of your 3-7/8" big bore cylinder set-up. The combination results in a compression ratio of 10.5:1. Piston skirts feature a unique black coating for improved wear-resistance, better fit and reduced noise. These pistons include Titanium SST rings to withstand the stresses seen in racing. Complete kit includes pistons, rings, wrist pins and clips.

3-7/8" Standard Bore. When combined with stock cylinder heads, these forged 3-7/8" pistons boost the compression ratio of your 3-7/8" big bore cylinder set-up. The combination results in a compression ratio of 10.5:1. Piston skirts feature a unique black coating for improved wear-resistance, better fit and reduced noise. These pistons include Titanium SST rings to withstand the stresses seen in racing. Complete kit includes pistons, rings, wrist pins and clips.

Harley-Davidson Accessories

#22144-08B

£381.08 £342.97
Member £323.92 -15%
Harley-Davidson Accessories Except for relieving the combustion chamber on stock 883 cylinder heads for correct compression ratio, these cylinders make the conversion to 1200cc a bolt-on operation. No cylinder head machining is required when used with Screamin' Eagle Cylinder Heads, or the 883/1200 Conversion Piston Kit. Cylinders are sold separately; two are required for the conversion. All EFI models require ECM calibration (priced separately). For race application only.

Except for relieving the combustion chamber on stock 883 cylinder heads for correct compression ratio, these cylinders make the conversion to 1200cc a bolt-on operation. No cylinder head machining is required when used with Screamin' Eagle Cylinder Heads, or the 883/1200 Conversion Piston Kit. Cylinders are sold separately; two are required for the conversion. All EFI models require ECM calibration (priced separately). For race application only.

Harley-Davidson Accessories

#16954-02A

£331.82 £298.64
Member £282.05 -15%

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