Harley-Davidson CVO Road Glide Big Bore Kits

Genuine HD big bore kits and aftermarket alternatives that fit the CVO Road Glide — all years. Select your year for exact fitment and pricing.

Select your year for exact fitment & prices

2025 2024 2023 2022 2021 2020 2019 2018 2012

Genuine Harley-Davidson (10)

Genuine Harley-Davidson

3-7/8" Standard Bore Piston Kit

22144-08B

£381.08Iron Pass £323.92£342.97View

Genuine Harley-Davidson

Screamin' Eagle 4-Inch Big Bore Conversion Kit

92500039

£1350.96Iron Pass £1148.32£1215.86View

Genuine Harley-Davidson

Big Bore Head Gasket Kit

16101-01

£56.76Iron Pass £48.25£51.08View

Genuine Harley-Davidson

Screamin' Eagle 135CI Crate Engine, Touring

16200978

£8417.99Iron Pass £7155.29£7576.19View

Genuine Harley-Davidson

Screamin' Eagle MVA CNC Ported Cylinder Heads

16925-11

£1673.23Iron Pass £1422.25£1505.91View

Genuine Harley-Davidson

Screamin' Eagle Stage III - 121ci to 125ci

92500141

£2065.73Iron Pass £1755.87£1859.16View

Genuine Harley-Davidson

Screamin' Eagle 135ci Touring Crate Engine, Black

16200980

£8417.99Iron Pass £7155.29£7576.19View

Genuine Harley-Davidson

Screamin' Eagle 135ci Stage IV Big Bore Kit

92500143

£4725.41Iron Pass £4016.60£4252.87View

Genuine Harley-Davidson

Screamin' Eagle 135ci Touring Crate Engine

16200979

£8417.99Iron Pass £7155.29£7576.19View

Genuine Harley-Davidson

Screamin' Eagle 135ci Touring Crate Engine, Black & Chrome

16200977

£8417.99Iron Pass £7155.29£7576.19View

Aftermarket for your CVO Road Glide

Confirmed to fit your CVO Road Glide

Aftermarket big bore kits the supplier lists against the CVO Road Glide. Genuine Harley-Davidson is listed above, not here.

S&S

S&S, 107" to 124" big bore conversion cylinder & piston kit

In stock

£1631.52Iron Pass £1549.94£1598.89View