Cylinders & Pistons

168 products

Shop the range of aftermarket motorcycle engine products at Pro Class Custom Parts.

110ci Big Bore Kit – Black. Fits Twin Cam 2007-2017

$3,277.99

Features & Benefits:- * Upgrades Twin Cam 96ci & 103ci to 110ci. * Cast Ductile Iron Liner; Increases Thermal Conductivity, Aids in Heat dissipation & Improves Ring Seal. * Includes 8....

100ci Big Bore Kit – Silver. Fits Big Twin 1999-2006

$3,367.99

Features & Benefits:- * Upgrades Twin Cam 88ci to 100ci. * Cast Ductile Iron Liner; Increases Thermal Conductivity, Aids in Heat dissipation & Improves Ring Seal. * Includes 8.75cc pop up ...

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117ci Big Bore Kit – Silver. Fits Twin Cam 2007-2017

$3,543.99

* 117″ Standard Compression – Flat Top Pistons * Note: Crankcases must be bored to accept the larger 4-1/8″ bore cylinders * Compression Ratios: 85cc Stock Heads = 10.9:1 89cc S&S Heads = 10.5...

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117ci Big Bore Kit – Black. Fits Twin Cam 2007-2017

$3,534.99

98ci Big Bore Kit – Silver. Fits Big Twin 1999-2006.

$2,811.99

Features & Benefits:- * Includes 10cc Dome Forged Pistons. * Includes 0.045″ Head Gaskets. * 3.937″ Bore. * 4″ Stroke. * 10.3:1 Compression Ratio with Stock 85cc Heads. * 9.9:1 Compression Rat...

CP CARRILLO PISTONS

$2,416.99

Features & Benefits:- * Sets balanced to + or – 1 gram * Made from a forging * Laser engraved * 100% Magnafluxed * Fully CNC Machined * Shotpeend Tech Tips: * Material # 9395 * Rod # HD-TWNC0...

107ci Big Bore Kit – Silver. Fits Twin Cam 2007-2017.

$2,794.99

Features & Benefits:- * Includes 3cc Dome Forged Pistons. * Includes 0.045″ Head Gaskets. * 3.937″ Bore. * 4-3/8″ Stroke. * 10.5:1 Compression Ratio with Stock 85cc Heads. * 10.1:1 Compression...

107ci Big Bore Kit – Black. Fits Twin Cam 2007-2017.

$2,786.99

98ci Big Bore Kit – Black. Fits Big Twin 1999-2006.

$2,866.99

Features & Benefits:- * Includes 10cc Dome Forged Pistons. * Includes 0.045″ Head Gaskets. * 3.937″ Bore * 4″ Stroke * 10.3:1 Compression Ratio with Stock 85cc Heads. * 9.9:1 Compression Rati...

110ci Big Bore Kit – Silver. Fits Twin Cam 2007-2017

$2,866.99

Features & Benefits:- * Upgrades Twin Cam 96ci & 103ci to 110ci. * Cast Ductile Iron Liner; Increases Thermal Conductivity, Aids in Heat dissipation & Improves Ring Seal. * Includes 8....

$1,388.99

Features & Benefits:- * Use with performance exhaust, air cleaner, S&S 585 bolt-in cams & EFI tune to produce massive horsepower gains. Tech Tips:- * Will Not Fit Twin Cooled Models. ...

$1,388.99

Features & Benefits:- * Use with performance exhaust, air cleaner, S&S 585 bolt-in cams & EFI tune to produce massive horsepower gains. Tech Tips:- * Will Not Fit Twin Cooled Models. ...

CP CARRILLO PISTONS

$1,200.99

Features & Benefits:- * ID # 2434 * Bore = 3.885″ * Stroke = 4.000″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed f...

CP CARRILLO PISTONS

$1,200.99

Features & Benefits:- * ID # 2655 * Bore = 3.885″ * Stroke = 4.000″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed f...

CP CARRILLO PISTONS

$1,200.99

Features & Benefits:- * ID # 4978 * Bore = 3.885″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...