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Cylinders & Pistons

168 products

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

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$1,336.99
$1,336.99
* The strongest studs & bolts available! * Top engine builders demand quality fasteners! Secure your engine with complete confidence * Superior in strength and performance to any other cylinde...
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$1,225.99
$1,225.99
Features & Benefits:- * ID # 14207 * Bore = 4.250″ * Stroke = 4.375″ * Steel gas nitride coated top ring * Ductile iron Napier 2nd ring * Three piece flex vent oil ring * X-forging for lighte...
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$1,225.99
$1,225.99
Features & Benefits:- * ID # 14234 * Bore = 4.250″ * Stroke = 4.375″ * Steel gas nitride coated top ring * Ductile iron Napier 2nd ring * Three piece flex vent oil ring * X-forging for lighte...
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$1,225.99
$1,225.99
Features & Benefits:- * ID # 14208 * Bore = 4.250″ * Stroke = 4.375″ * Steel gas nitride coated top ring * Ductile iron Napier 2nd ring * Three piece flex vent oil ring * X-forging for lighte...
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$1,226.99
$1,226.99
Features & Benefits:- * ID # 12873 * Bore = 4.310″ * Stroke = 4.500″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed...
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$1,226.99
$1,226.99
Features & Benefits:- * ID # 12873 * Bore = 4.310″ * Stroke = 4.500″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed...
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$1,225.99
$1,225.99
Features & Benefits:- * ID # 14235 * Bore = 4.250″ * Stroke = 4.375″ * Steel gas nitride coated top ring * Ductile iron Napier 2nd ring * Three piece flex vent oil ring * X-forging for lighte...
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$1,225.99
$1,225.99
Features & Benefits:- * ID # 12873 * Bore = 4.250″ * Stroke = 4.500″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed...
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$1,225.99
$1,225.99
Features & Benefits:- * ID # 12875 * Bore = 4.250″ * Stroke = 4.375″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed...
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$1,200.99
$1,200.99
Features & Benefits:- * ID # 4874 * Bore = 4.134″ * Stroke = 2.835″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed f...
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$1,200.99
$1,200.99
Features & Benefits:- * ID # 3666 * Bore = 3.937″ * Stroke = 2.835″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed f...
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$655.99
$655.99
Features & Benefits:- * ID # 2456 * Bore = 3.937″ * Stroke = 2.835″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed f...
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$1,199.99
$1,199.99
Features & Benefits:- * ID # 2621 * Bore = 3.937″ * Stroke = 2.835″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed f...
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$654.99
$654.99
Features & Benefits:- * ID # 2618 * Bore = 3.498″ * Stroke = 4.250″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...
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$654.99
$654.99
Features & Benefits:- * ID # 2788 * Bore = 3.498″ * Stroke = 4.250″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...