Cylinders & Pistons

160 products

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

$1,681.99

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-TWNC07...

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

$2,826.99

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 Compressio...

98ci Big Bore Kit - Black. Fits Twin Cam 1999-2006 - S&S

$2,909.99

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...

Sold Out

$1,242.99

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

$1,244.99

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

$1,244.99

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 ...

CP CARRILLO PISTONS

$1,244.99

Features & Benefits:- * ID # 2506 * Bore = 3.885″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

CP CARRILLO PISTONS

$1,244.99

Features & Benefits:- * ID # 2504 * Bore = 3.875″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

Sold Out

$1,300.99

* These forged 3-7/8″ bore stroker pistons for 1999-2006 Twin Cam are required for the S&S 106″ stock bore stroker kit with 4-1/2″ stroke flywheels. * Flat Top Pistons. 3.875″ Bore & 4-1/...

Sold Out

CP CARRILLO PISTONS

$1,065.99

Features & Benefits:- * ID # 8435 * Bore = 4.125″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

CP CARRILLO PISTONS

$1,065.99

Features & Benefits:- * ID # 6918 * Bore = 3.937″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

Sold Out

CP CARRILLO PISTONS

$1,065.99

Features & Benefits:- * ID # 6437 * Bore = 3.875″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

CP CARRILLO PISTONS

$1,065.99

Features & Benefits:- * ID # 6933 * Bore = 3.937″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

CP CARRILLO PISTONS

$1,066.99

Features & Benefits:- * ID # 12776 * Bore = 4.180″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed...

Sold Out

$721.99

Recommended Additional Purchase * Part # KB264.STD = KB Piston Kit * Part # CG-C9763 or CG-C9177 = Top End Kit * Replaces OEM # 16447-88 Tech Tip:- 1. Final sizing of piston to cylinder bore clea...