Cylinders & Pistons

158 products

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

$1,283.99

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 ...

$1,385.99

* 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/...

$1,306.99

Features & Benefits:- * 3.937″ Bore. * 4-3/8″ Stroke. * Pistons are compatible with stock conrods with tapered wristpin ends. * S&S bore pistons are machined to such close tolerances that ...

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CP CARRILLO PISTONS

$1,098.99

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

$1,097.99

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 ...

CP CARRILLO PISTONS

$1,097.99

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

$1,097.99

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

$1,098.99

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...

$713.99

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 cle...

$660.99

* Top quality cast iron alloy Replacement Cylinders painted black and finished to 3-7/16″ 1200cc (74ci) standard size * Designed for inside or outside top end oiling Recommended Additional Purchas...

$664.99

* Top quality cast iron alloy Replacement Cylinders painted black and finished to 3-7/16″ 1200cc (74ci) standard size * Painted black to prevent rust. Recommended Additional Purchase * Part # KB26...

$663.99

$660.99

KB PISTONS

$644.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

KB PISTONS

$644.99

Features & Benefits:- * Bore = 3.508″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...